Document 6R5jLgV95j97kL0xVE05zY5rE

LIST OF HAZARDS, SYMPTOMS, ETC. 19 E. Dust Dusts have been divided into two kinds--organic and inorganic. Organic dusts do not cause pulmonary lesions, while inorganic dusts produce fibrosis of the lung tissue, the extent of which depends upon the kind of dust, the size of the dust particles, the concentration of dust, and the length of exposure to the particular dust inhaled. Dr. H. R. M. Landis found that, when fibrosis was present in the lungs of men exposed to organic dust, the latter was always mixed with some form of inorganic dust. Workers exposed to organic dust for years showed no pulmonary changes other than those found in people living in the city. Dust, whether organic or inorganic, by acting as a carrier of bacilli, may increase their number in the lungs. In this way men .exposed to dust may be in greater danger of con tracting tuberculosis than others. Whether or not all inorganic dusts, per se, are capable of produc ing lung fibrosis, given a sufficient length of exposure and a high enough concentration of dust, is still an open question. Many inor ganic dusts found in industry have been inhaled for long periods without noticeable injury. Dusts containing free silica, however, are definitely known to be extremely harmful, producing serious pul monary damage in a comparatively short time. The pathological condition resulting from exposure to silica dust is properly referred to as silicosis. X-ray pictures of the silicotic lung show a character istic mottling due to the formation of fibrotic nodules where silica has lodged in the lymphatic system. Symptoms of the disease may not show until it is well advanced, when there is a decreased lung expan sion, marked shortness of breath, and cough. The silicotic lung is a fertile field for the tubercle bacillus: a very largepercentage of cases of silicosis terminate in a fatal tuberculosis. The action of silica on the lungs is to promote the growth of connective tissue. Asbestos dust is another dust which, it has recently been definitely determined, produces a lung fibrosis under existing industrial condi tions, although its action is apparently milder than that of free silica. The relation of tuberculosis and asbestos dust is not entirely clear. Complete protection for workmen exposed to silica dust has been found difficult in many processes. X-ray pictures, therefore, should be taken at regular intervals of all workmen exposed. It is of the utmost importance that these pictures be interpreted by a physician familiar with the appearance of the lungs at various stages in the development of silicosis. Workmen who are found to be affected should be transferred to other jobs, where they will not be exposed to dust. There are four methods that may be used to keep down the amount of dust generated through industrial processes. No one of these can apply to all conditions, but the particular method to be used must be adapted to the peculiarities of the process. 1. The use of water or oil to wet the dust, thus preventing it from rising and filling the atmosphere. This method is now believed to be oi doubtful value in some processes, and in these should not be relied upon when other methods are practicable. 2. The use of exhaust systems which remove the dust at the point of origin. . isms* 4 20 OCCUPATION- HAZARDS AND DIAGNOSTIC SIGNS 3. The use of enclosed chambers in which the dust-producing proc esses are confined, the processes being regulated by the operator from the outside. 4. The use of helmets covering the head and neck, preferably those which permit supplying air thresh a pipe from a nondusty area. E. Dust 1. Inorganic Dust Symptom, condition, or disetue to look for Cough, dyspnea. pleuritic pains, hemoptysis, deficient expansion, dullness, diminished resonance, mucous riles, fibrosis, inflammatory condition of eyes, ears, nose, and throat, colds, chronic catarrh of respiratory tract, chronic catarrh of digestive tract, pleurisy, tuberculosis. Occupation* ichich offer tuck expoture Abrasives workers Acetylene makers Asbestos workers Basic slag (artificial manure) workers Battery (dry) makers Bed rubbers (marbleand stone) Bench molders (foun dry) Bevelers Bisque-kiln workers Blasters Bone workers Bricklayers Brickmnkers Bronzers Buffers Burrers (needles) Burr filers Button makers Calenderers (rubber) Carbide makers Carbon-black workers Carbon-brush makers Carborundum workers Card grinders (textiles) Casting cleaners (foun dry) Cement workers Charcoal workers (sugar refining) Chargers (smelting) Charges (zinc smelting) Chasers (steel) Chimney sweepers Chippers Clay and bisque makers (pottery) Clay-plug makers (pot tery ) Coal passers Color makers Construction laborers Core makers Cotton-mill openers Crucible mixers Crnshermen (clay and stoDe) Cut-glass workers Cutlery makers Cy&namid makers Diamond cutters Diatomaceous - earth workers Drillers (rock) Electrotypers Emery-wheel makers Engineers (stationary) Engravers Fertilizer makers File cutters Filers Firemen (stationary) Flint workers Floor molders (foundry) Flue cleaners Foundry workers Glass blowers Glass cutters Glass finishers Glass mixers Glare mixers (pottery) Gold beaters Gold refiners Graphite workers Grinders (metals) Gypsum workers Horn workers House wreckers Iron and steel mill workers Jewelers Junk (metal) refiners Jute workers Lapidaries Lead smelters Compositors Lime burners Compounders (rubber) Llme-klls chargers Concentrating-mill work Lime workers ers (lead and zinc) Linoleum makers Lithographers Marble cutters Masons Match-factory workers Metal turners Mica strippers or split ters Mica workers Miners Mixers (rubber) Mixing-room workers (miscellaneous) Mold breakers (foundry) Paint removers Paper hangers Phosphate-mill workers Pit molders (foundry) Planer men (stone; metal) Plasterers Plaster of parts workers Pneumatic-tool workers Polishers Polish makers Pottery workers Pouncers (felt hats) Pressmen (printers) Printers Putty makers Putty polishers (glass) Pyrites burners Quarrymen Rubber workers Sagger makers Salt preparers Sand blasters Sand cutters Sanders Sanding-machlne opera tors Sandpaperers (enamel ing and painting auto bodies, etc.) Sandpaper makers Sand pulverizers Saw fliers Scissors sharpeners Sconring-powder makers LIST OF HAZARDS, SYMPTOMS, ETC, 21 Scrapers (foundry) Screen workers (lead and zinc smelting) Sifters Sintering-plant workers Slag workers Slate workers Slip makers (pottery) Smelters (metal) Smoothers (glass) Soap (abrasive) workers Spinners (asbestos) Stamp-mill workers Statuary workers Stokers Stonecutters (dry) Stonecutters (.vec proc ess) Stonemasons Sugar refiners Sulphur burners Table turners (enamel ing) Talc workers Textile comb makers Tile makers Toolmakers Top fillers (foundry) Tumhllng-barrel workers Weighers 2. Organic Dust Symptom, oondltion, or disease to look for Dryness of nose, throat and mouth, cough, anaphylaxis, asthma, bronchitis, emphysema tuberculosis. Occupation* tchich offer *uch exposure Bakers Beamers (textiles) Blowers (felt hats) Broom makers Brushers (felt hats) Brush makers Buffers Button makers Carbonizers (shoddy) Carders (textiles) Card grinders (textiles) Carpet makers Cigar makers Cobblers Comb makers Fur clippers Fur cutters Fur handlers Fur preparers Fur pullers Furniture polishers Glove makers (leather preparers) Glue workers Grain-elevator workers Grinders (rubber) Guncotton pickers Hair workers Harness makers Heel makers (shoe) Coners (felt hats) Cork workers Cotton-mill workers. Cotton twisters Curriers (tannery) Devil operators (felt Hemp workers Jute workers Knitting-mill workers Lace makers Lasters (shoes) Leather workers hats) Doffers (textiles) Feather curers Feather workers Felt-hat makers Fiber workers Linen workers Match-factory workers Mattress makers Mixers (felt hats) Mixing-room workers (miscellaneous) Finishers (leather) Polishers Flax spinners Pouncers (felt bats) Flour workers Formers (felt hats) Pyroxylin-plastics work ers Fur carders Rag workers Holler coverers (cottou mills) Ropemakers Rubber workers Sawmill workers Scourers, wood lasts (shoes) Shavers (felt hats; fur; tannery) Shaving-brush makers Shoddy workers Shoe-factory operatives Sifters Silk workers Softeners (tannery) Spinners (textiles) Starch makers Straw-bat makers Sugar refiners Taxidermists Textile workers Tobacco rollers Tobacco workers Upholsterers Weavers Weighers Wood-last scourers (shoes) Wood workers Wool carders Wool spinners Wool workers F. Infections Infectious diseases are frequently of occupational origin. Among the more common of these are anthrax, hookworm, tetanus, trachoma, glanders, tularemia, actinomycosis, ringworm, athlete's foot, undulant fever, and septic infections. Anthrax, hookworm, and septic infections are of especial interest because of the frequency of tneir occurrence in industry. A brief summary, therefore, of the symp toms of these diseases and the principal occupations in which infection is likely to occur have been included. Prevention of these diseases lies in the observance of the wellestablished rules of general sanitation. The following special meas ures are also recommended: 22 OCCUPATION HAZA-BDS AND DIAGNOSTIC SIGN3 1. Anthrax.--All hides and animal hair must be thoroughly steri lized. Foreign skins or hair should not be carried on the unpro tected shoulder. The hands should be frequently washed with bichloride of mercury. Hair sorters should wear respirators. 2. Hookworm.--Workers in mines and others who are exposed to infected soil should make special effort to keep the skin clean. Shoes must always be worn and gloves are also of value in preventing the entrance of the hookworm through the skin. Infected soil should be disinfected and kept dry. The utmost attention should be given to the prevention of soil pollution. 3. Septic infectiom.--Cuts, scratches, or abrasions should be treated at once to avoid infection. Men having open wounds should not be allowed to work with putrid material. F. Infections 1. Anthrax Symptom, condition, or ditease to look for Anthrax (external) : () Malignant pustule.--Begins as inflamed pimple or boil. Papule becomes bard, with a purple center and deep red zone of infiltration surrounding, ap pearance of minute veslculnr areola. Central papule becomes vesicular, dis charges thick, bloody serum, later forming a brown gangrene. A painful lymphangitis with hard edema extending over neck and arm. Local phlebitis In the edematous area, chilliness, anorexia, vomiting, prostration, high tempera ture, feeble pulse. () Malignant edema.--A spreading Inflammation of loose connective tissue accompanied by sloughing and gangrene. Constitutional symptoms those of pyemia. Anthrax (internal): High fever, pains In head and back, vomiting, constipation, pain and tender ness In the abdomen, rapid, feeble pulse, palpable spleen, dyspnea, cyanosis. May be hemorrhage from bowels. When lungs are involved, there are addi tional symptoms--cough, pain in the chest, suffocation. Occupation which offer tuch exposure Animal handlers Baters (tannery) Beamhouse workers (tan nery) Brush makers Butchers Carpet makers Cattle salesmen Cobblers Carriers Farmers Fertilizer makers Fur carders . Fur clippers Fur cutters Fur handlers For preparers Fur pullers Hair workers Leather workers Lime pullers (tannery) Longshoremen Meat inspectors Preparers (tannery) Shavers (felt hats; fur; tannery) Sharlng-bru9h makers Sbepherds Stablemen Sumackers (tannery) Table hands (tannery) Tannery workers Taxidermists Transporters of hides and wool Veterinarians Wool carders Wool spinners Wool workers 3. Hookworm (ankylostomiasis) Symptom, condition, or diteate to look for Anemia, pallor of the face, even when the blood count Is not very low; a dull, heavy, listless expression, manner, speech, and gait; itching sores; perversion of taste; Increasing muscular weakness; occurrence of parasites In stool. Vic tims often complain of gastrointestinal pains and cramps; in exaggerated cases there are edema, ascites, progressive emaciation, protuberant abdomen, and increasing stupor. LIST OP HAZARDS, SYMPTOMS, ETC. 23 Occupation* wh ich offer such exposure Bride maker* Lumbermen Construction-camp work- Miners er* . Quarrymen Farmer* Sawmill worker* Trench diggers Tunnel workers Non.--This disease occurs In the Southeastern States, and Ls prevalent also among the gold miners of California. S. Septic Infections Symptom, condition, or disease to look for Skin infections, such as boils, carbuncles, blood poisoning, localized lymphan gitis or cellulitis. Occupations which offer such exposure Animal handlers Handlers of putrid or de Butchers composing animal prod Cauners Feather workers ucts Preparers (tannery) Fertilizer makers Qarbage workers Glue makers Hair workers Rag workers Shavers (felt hats; fur; tannery) Shoddy makers Silk workers Soap makers Tallow refiner* Tannery workers Veterinarians G. Radiant Energy 1. X-ray*, Radium, and Other Radioactive Subitaaee* (radiothorium, metothorium, etc.) The increasing use of X-rays and of radium in the detection and treatment of disease and the more extended use of X-rays in indus try as an aid in detecting hidden defects in metals have greatly added to their importance as potential sources of occupational dis ease. Recently, radioactive substances (radium, radiothorium, mesothorium) have been added to the list of occupational hazards found in manufacturing industries following upon the discovery that these substances were responsible for the serious impairment and death of several young women who had been employed in the painting of luminous watch dials with radioactive paint. The hazard is now known to be present also in several other industries. Exposure to X-rays and emanations from radium and other radio active substances may produce serious bums and cancer, while the blood and blood-forming organs are profoundly affected. Anemia and leukopenia are frequently associated with exposure to radiations. Much has been learned concerning adequate measures for the pro tection of workers exposed to X-rays and radioactive substances since the early days of their discovery, when many pioneers in medi cal treatment with these new agencies, suffered severe mutilating disabilities because of their unmitigated exposure. Protective meas ures today have been worked out in considerable detail for the variety of conditions met with. See for example, The Journal of the American Medical Association, April 27, 1929, pages 1428-1430, and the Monthly Labor Review for June 1929, pages 22-24. Also, the brochure entitled " Protective Measures Against Dangers Resulting from the Use of Radium, Roentgen, and Ultra-Violet Rays ", pub lished by the League of Nations Health Organization, August 1931. 24 occupation hazards and diagnostic signs G. Radiant Energy 1. X-rays, Radium, and Other Radioactive Substances (radiothorium, mesothorium, etc.) Symptom, condition, or disease to look for Anemia, leukemia, leukopenia, necrosis of bones, burns, dermatitis, cancer. sterility. Occupations 1chlch offer such exposure Chemists and laboratory workers (ra dium research) Painters of luminous watch dials and painters of Instrument dials, and other workers in plants manufac turing luminous dials Physicians, nurses, and hospital at tendants Radioactive-paint makers RadioactiTe-water makers Radiologists Radium ore reduction workers Radium specialists Roentgenologists X-ray technicians and photographers 2. Ultraviolet and Infrared Rays Ultraviolet and infrared ravs are an industrial hazard in a num ber of occupations, chiefly welding and cutting. Although we can not see ultraviolet and infrared rays, they are very active and powerful and are usually coexistent with excessive radiance. Ultraviolet rays are chemical in their action, and cause intense irritation of the eyes and burns of the skin, similar to sunburn. Snow blindness, desert blindness, and the " eye flashes " of welders are one and the same condition, all due to the action of ultraviolet rays upon the eye; their effects can be very painful and cause dis ability for several days, though usually they ao not cause permanent damage. Intrared rays act upon the eyes simply as heat, but may cause permanent damage. There is little definite evidence that welding may cause cataract, similar to glassblower's cataract, but it is prob able that prolonged exposure to infrared rays may cause haziness of the cornea (part of eyeball). The injurious effects resulting from excessive light due to defective illumination are not considered nere, but treated as a separate hazard. See Hazard D. Goggles, helmets, shields, and masks, equipped with colored lenses especially designed to exclude the kinds and intensities of rays met with, afford protection to the eye. Booths should be provided for welders working indoors to protect others working nearby. Clothing which covers the body completely protects the skin from irritation caused by the rays. * 2. Ultraviolet and Infrared Rays Symptom, oondition, or disease to look for Burns, cataract, conjunctivitis, dermatitis, electrical ophthalmia, photophobia, rPtinitLs. Occupationt which offer tuch exposure Bakers Cooks Blacksmiths Brazers C a 11 e r s (oxyacetylene and other gases) Electricians Electric linemen Furnace workers LIST OF HAZARDS, SYMPTOMS, ETO. 25 Glass blowers Glass-furnace workers Incandescent mantle hardeners Iron and steel mill work ers Motion - picture - studio workers and actors Motion - picture - machine operators Photographers Stokers Welders H. Repeated Motion, Pressure, Shock, etc. Under this heading are included the occupational neuroses, those muscle-strain conditions which are caused by continuous repetition of movements, pressure, or blows peculiar to many occupations. This section is not concerned with the neurasthenic phenomena fol lowing accidental injuries, commonly referred to as traumatic neu rosis. Everyone is familiar with tne muscular strain experienced in performing for the first time some exercise, such as rowing, lone walking, etc. Men newly introduced into a process requiring such repeated action are affected similarly but often much more severely, so as to disable them temporarily for the particular job. After long-continued exposure the muscles involved do not function when called upon to perform the accustomed task, although their function is unimpaired for other activities. The injury does not stop with muscular strain but may even cause inflammation of the surrounding sheaths or paralysis of the parts concerned. Where continuous pressure or shock is the cause, pads or cushions are often beneficial. Workers who have to grasp tools tightly would do well frequently to change their method of holding the instrument, if this is possible. Occasional rest periods will do much toward the prevention of muscular pains and cramps. H. Repeated Motion, Pressure, Shock, etc. Symptom, condition, or disease to look for Pain of muscle used, set up by a myositis, bursitis, synovitis, or other local changes of a chronic inflammatory nature; trembling, gradual emaciation and partial paralysis of parts, acroparesthesia. Oocuptions which offer Artificial-flower makers Barbers Bicyclists Blacksmiths Carpenters Chauffeurs Clerks Cobblers Compositors Cotton twisters Dancers Diamond cutters Elevator runners Enamelers Engravers Furniture polishers Gold beaters Hammermen h exposure Jewelers Knitters Lathe turners Letter sorters Lithographers Locksmiths Machinists Mall sorters Masons Microscoplsts Milkers Miners Musicians Painters Paper-box makers Pavers Pneumatic-tool workers Polishers Porters Pressers Riveters Sailors Sawyers Scissors sharpeners Seamstresses Sewing-machine operas tors Spinners (textiles) Stonecutters Tailors Telegraphers Typists Washwomen Watchmakers Weavers 26 OCCUPATION wat. Anns AND diagnostic signs J. Poisons The continued introduction of new processes making use of new poisonous substances and the increasing use in industry of other substances well known to be injurious to health make this section of more and more importance. During comparatively recent years the highly poisonous chemicals, tetraethyl lead and radio-active paints, have been introduced into manufacturing processes and have been productive of serious poisoning. A group of refrigerants (methyl bromide, methyl chloride, etc.) have found widespread use in the manufacture of refrigerators and have proved injurious to the health of workmen. Phosphorus, tetrachlorethane, and certain other chemi cals, on the other hand, have decreased in importance. Industrial poisoning caused by these substances is comparatively rare today. Since we cannot foretell, however, when a new use will be found m industry for a poisonous substance, the inclusion of these chemicals in our list has been thought desirable. The revised List of Industrial Poisons, compiled by Sommerfeld and Fischer for the International Association tor Labor Legislation, has formed the basis for the data presented in this section.1 The material in that list has been revised and brought up to date. A number of poisons have been added, and the occupations exposed are given for each poison. The symptoms cited are those which are reported in the best works available. In order to avoid swelling the list of poisons to unwarranted proportions, substances, the effects of which are similar, have been grouped. Thus all nitro compounds of benzol and its homologues have been included under one heading, and the same procedure has been followed with amino compounds. The next section (p. 50) is devoted to the substances occurring in industry which produce typical occupational dermatoses. Because of the very large number or substances in the latter class it has not been possible to treat them as fully as the other poisons. To prevent industrial poisoning the following precautions should be taken: Workers must be instructed as to the toxicity of the substance handled. Frequent medical examinations of workers must be made to detect early symptoms of disease. Before new substances are employed in industrial processes their toxicity should be determined. Personal cleanliness must be maintained, and proper washroom facilities, therefore, should be provided. Men should not be allowed to eat in workrooms where poisonous substances are handled. Work clothes should receive special attention and should be removed at the end of the day's work. The use of gloves and boots is often necessary.. - Mechanical devices for confining the poisons are of prime impor tance. Reference should be made in this connection to the preventive measures discussed under " Dust." Fumes and gases should be taken care of by proper ventilation, the use of exhaust systems, fans, and blowers. Men who work in an atmosphere polluted by poisonous fumes and gases should always wear gas masks properly suited for the obtaining conditions. * Be* U.8. Bureau at Labor Statistic* BuL No. 100. WuUnston, 1913. LIST 0? HAZARDS, SYMPTOMS, ETC. 27 J. Poisons 1. Acetaldehyde Symptom, condition, or disease to look for Irritation of mucous membranes of eyes and respiratory tract, dyspnea and cough, acceleration of heart profuse night sweats. Occupations tchick offer such exposure Acetaldehyde workers Aldehyde pumpmen Disinfectant makers Dye makers Explosives workers Mirror silvered Photographic workers Pyroxylin-plastics work ers Resin (synthetic) makers Rubber (synthetic) mak ers Varnlshera Varnish makers Vinegar workers Yeast makers 2. Acetanilide. See Aniline 3. Acetone Symptom, condition, or disease to look for Irritation of skin and mncous membranes of eyes and respiratory tract Occupations which offer such exposure Acetone workers Acetylene workers Airplane-dope makers Artificial-leather makers Cellulose acetate makers Chloroform makers Dye makers Dyers Explosives workers Lacquered Lacquer makers Methyl-alcohol makers Nitrocellulose workers Oil extractors Painters Paint makers Paint removers Paraffin workers Perfuse makers Photographic workers Pyroxylin-plastics work ers Rubber workers Smokeless-powder mak ers Transparent wrapping material workers Vamishers Varnish makers Wood-alcohol distillers 4. Acridine Symptom, condition, or disease to look for Irritation of skin and mucous membranes of eyes and respiratory tract violent sneezing. Occupations which offer such exposure Acridine workers | Dye makers 5. Acrolein Symptom condition, or disease to look for Irritation of skin and mucous membranes at eyes and respiratory tract bronchial catarrh. Occupations which offer such exposure Acrolein workers Bone renderers Candle makers Fat Tenderers Galvanized Glne makers Lard makers Linoleum makers Linseed-oil boilers Pyroxylin-plastics work ed Refrigerator makers and repair men Soap makers Stearic-add maked Tallow refined Tinners Type melted Varnish maked . 6. Aluminum Not generally regarded as sn Industrial poison. 28 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS 7. Ammonia Symptom, condition, or disease to look for Irritation ot respiratory passages, cough and dyspnea, pulmonary edema, bronchitis, sever* Irritation of eyes, conjunctivitis, caustic action on skin. Occupations which offer such exposure Acetylene workers Ammonia workers Ammonium-salts makers Artlflciai-lce makers Artificial-silk makers Boneblack makers Bronzers Calcium carbide makers Coke-oven workers Color makers Cyanide makers Dye makers Dyers Explosives workers Fertilizer makers Galvanizers Gas (1 i 1 u m i n a t lng) workers Gas purifiers Glne makers Lacquer makers Mirror silverers Nitric-acid makers Petroleum refiners Refrigerating-plant workers Salt extractors (cokeoven byproducts) Sewer workers Shellac makers Shoe finishers Soda (Solvay) makers Stablemen Sugar refiners Tannery workers Tinners Tarnish makers 8. Amyl Acetate Symptom, condition, or disease to look for Irritation of mucous membranes of eyes, nose, throat, and bronchial tubes, headache and vertigo, fullness ot the head, drowsiness, oppression in chest, cough, nausea. Occupations which offer such exposure Airplane-dope makers Alcohol-distillery work ers Amyl acetate workers Art-glass workers Artificial -leather workers Artificial-pearl makers Artiflclal-sllk makers Battery (dry) makers Bookbinders Bronzers Buffers (rubber) Calico printers Camphor makers Cutlery makers Dyers Enamelers Enamel makers Explosives workers Fruit-essence makers Furniture polishers Gliders Jewelers Lacquerers Lacquer makers Leather workers Linoleum makers Mottlers (leather) Nitrocellulose workers Painters Paint makers Paint removers Patent-leather makers Perfume makers Photographic-film mak ers Polishers (wood) Polish makers Pyroxylin-plastics work ers Shellackers Shellac makers Shoe-factory workers Shoe finishers Smokeless-powder mak ers Tannery workers Toy makers Varnishers Varnish makers Wirers (incand e s e e n t lamps) 9. Amyl Alcohol Symptom, condition, or disease to look for Irritation of eyes and respiratory tract, headache and vertigo, dyspnea and cough. - Occupations which offer such exposure Alcohol-distillery work ers Amyl-acetate makers Amyl-nltrite makers Explosives workers Fruit-essence makers Fusel-oil workers Lacquerera Lacquer makers Mordanters Nitrocellulose workers Painters Paint makers Bubber (synthetic) makers Shoe finishers Smokeless - powder makers Varnishers Varnish makers list of hazards, symptoms, etc. 29 10. Aniline and Other Amino Compounds of Benzol and Its Homologues Symptom, condition, or disease to look for Pallor followed by cyanosis, especially of lips and finger tips, weakness, somnolence. Irritability, mental confusion, headache and vertigo, unsteady gait, muscular tremor and convulsions, eczematous eruptions, anemia, weak pulse, brownish discoloration of the blood and urine, disorders (tumors, etc.) of the bladder. Occupations which offer such exposure Acetanilide workers Aniline makers Artificial-leather makers Calico printers Camphor makers Coal-tar workers Compositors Compounders (rubber) Dye makers Dyers Explosives workers Feather workers Germicide makers Lithographers Millinery workers Mixers (rubber) Nitranlline workers Painters Paint makers Pencil (colored) makers Perfume makers Photographic workers Pressroom workers (rub ber) Printers Reclaimers (rubber) Rubber workers Tannery workers Varnishers Varnish makers Vulcanlzera 11. Antimony and Its Compounds Symptom, condition, or disease to look for Irritation and eczematous eruptions of the skin, inflammation of mucous membranes of nose, mouth, and throat, gastro-intestinal disorders with vomit ing, diarrhea. Intestinal c Occupations which offer Antimony extractors (refiners) Battery (storage) mak ers Brass founders Burnishers (iron and steel) Burnishers (rifle bar rels) Calico printers Chargers (zinc smelt ing) Color makers Compositors itch exposure Compounders (rubber) Copper refiners Dye makers Electroplaters Electrotypers Enamel makers Filers Fireworks makers Glass mixers Glase dippers (pottery) Glaze mixers (pottery) Grinders (metals) Grinders (rubber) Lead smelters Llnotypers Mixers (rubber) Monotypers Mordanters Pressroom workers (rubber) Printers Rubber (red) workers Shot makers Stereotypers Type founders Vulcanlzera Zinc refiners 12. Arsenic and Its Compounds Symptom, condition, or disease to look for Headache, eruptions and bronzing of skin, loss of nails and hair, keratosis. Inflammation of mucous membranes, gastro-intestinal disturbances with nausea, vomiting, and severe diarrhea and abdominal pains, peripheral polyneuritis, muscular weakness and paralysis, perforation of nasal septum. Occupations whioh offer Arsenic roasters Artificial-flower makers Artlflcial-Ieather makers Bookbinders Bra8s founders Briquet makers Bronzers Calico printers Candle (colored) makers Carpet makers uoh exposure Caxroters (felt hats) Chargers (zinc smelting) Chimney sweepers Colored-paper workers Color makers Compounders (rubber) Copper founders Copper smelters Curriers (tannery) Cut-glass workers Decorators (pottery) Dye makers Electroplaters Enamelers Enamel makers Farmers Feather curers Feather workers Felt-hat makers Ferrosilicon workers 30 OCCUPATION HAZABDS AND DIAGNOSTIC SIGNS Fireworks makers Fur handlers Fur preparers Galvanlzers Gardeners Glass mixers Glaze dippers (pottery) Glaze mixers (pottery) Gold refiners Insecticide makers Japan makers Japanners Lacquerers Lacquer makers Lead smelters Linoleum colorers Lithographers Mixers (rubber) Mordanters Painters Paint makers Paper glazers Paper bangers Paris-green workers Pencil (colored) makers Pitch workers Pottery workers Pressroom workers (rub ber) Printers Pyrites burners Refiners (metals) Rubber workers Sealing-wax makers Sheep-dip makers Shot makers Soot packers Sprayers (trees) Sulphur burners Suiphurlc-acid workers Tannery workers Taxidermists Tinners Toy makers Velvet makers Wallpaper printers Wax ornament makers Wire drawers Wood preservers Zinc miners Zinc refiners 13. Arsenluretted Hydrogen (arsine) Symptom, condition, or disease to look for Feeling of faintness and weakness, intense headache, nausea and vomiting, jaundice, abdominal pains, hemoglobinuria, shivering and chills, gastric disorders. Occupation/ which offer Acetylene workers Acid dippers Aniline workers Arsenluretted hydrogen makers Artlficlal-sllk makers Balloon (hydrogen > workers Battery workers BI eaching-powder makers Bronzers Carbonlzers (shoddy) Chemical workers Dimethyl-sulphate makers ich expowre Dye makers Electrolytle-proceas (cop per) workers Electroplaters Etchers Ferroslllcon workers Fertilizer makers Galvanlzers Qas workers Gold extractors Jewelers Lead burners Lime burners Nitrocellulose makers Nitroglycerine makers Paper makers Picklers Plumbers Refiners (metals) Shoddy workers Soda makers Solderers Submarine workers 8ulpburic-acid workers Tinners Towermen (sulphuric add) Zinc-chloride makers 14. Barium Most of the salts of barium are poisonous when Ingested. Few cases of industrial poisoning, however, have been reported. The symptoms reported in industrial poisoning include whitening and loss of hair, paralysis, acceleration of the heart, cyanosis of the skin, gastric pain, and vomiting. 15. Benzine (naphtha-gasoline) Symptom, condition, or disease to look for Headache and vertigo, nausea and vomiting. Irregular respiration, drowsi ness. Irritation of akin and mucous membranes, "naphtha Jag" (a condition resembling mild alcoholic Intoxication), visual disturbances, twitching of the muscles. Occupations which offer Art-glass workers Bronzers Buffers (rubber) Cast scrubbers (electro platers) Cementers (rubber shoes) . Cement mixers (rubber) ch exposure Chauffeurs Compositors Compounders (rubber) Curriers (tannery) Decorators (pottery) Degreasers (fertilizer leather) Dippers (rubber) Driers (rubber) Dry cleaners Dyers Electroplaters Enamelers Enamel makers Feather workers Furniture polishers LIST or HAZARDS, SYMPTOMS, ETC. 31 Garage workers Gasoline-engine workers Gilders Glue workers Japan makers Japanners Lacquerers Lacquer makers Linoleum makers Lithographers Metal-polish makers Millinery workers Mixers (robber) Mordanters Painters Paint makers Petroleum refiners Polishers Polish makers Pressroom workers (rubber) Printers Putty makers Pyroxylin-plastics work ers Rubber-glove makers Rubber-tire builders Rubber workers Shade-cloth makers Shellackers Shellac makers Shoe-factory workers Shoe finishers Tannery workers Type cleaners Varnishers Varnish makers Vulcaniters Waterproof-cloth makers Window-shade makers Woodworkers 16. Benzol (benzene) and Its Homologues (toluol and xylol) Symptom, condition, or disease to look for Headache and vertigo, hemorrhages, spots of extravasated blood on the skin, anemia, injury to blood-forming organs, kidneys, liver and nervous system, marked susceptibility to infection, local irritation (bronchitis, conjunctivitis, stomatitis, etc.), narcosis (acute poisoning). Occupations ickich offer such exposure Airplane-dope workers Alcohol (denatured) workers Aniline makers Artificial-leather makers Battery (dry) makers Enamel makers Engravers Explosives workers Extractors (oils and fats) Feather workers Benzol-still men Blenders (motor fuel) Brake-lining makers Brouzers Can (sanitary) makers Gas (ill u m 1 n a 11 n g ) workers Gilders Glue workers Lacquerers Carbolic-acid makers Cast scrubbers Oementers (rubber) Cement mixers (rubber) Coal-tar workers Coke-oven workers Color makers Compounders (rubber) Decorators (pottery) Lacquer makers linoleum worker* Lithographers Millinery workers Mixers (rubber) Mordanters Nitrobenzene makers Nitrocellulose workers Oilcloth makers Degreasers (fertilizer; leather) Dippers (rubber) Driers (rubber) Dry cleaners Painters Paint makers Paint-remover makers Paint removers Paraffin makers Dye makers Electroplaters Enamelera Phenol makers Photo-engravers Photographic workers Picric-add makers Pressroom workers (rubber) Pyroxylin-plastics work ers Reclaimers (rubber) Rubber-tire builders Rubber workers Shade-cloth makers Shellackers Shellac makers Shoe-factory workers Shoe finishers Silverers Smokeles s-powder makers Soap makers Still (coal tar) cleaners Treaders (rubber) Trinitrotoluol makers Vamiahers Varnish makers Vnlcanizers W a terproo f-fabric makers Welders Window-shade makers 17. Brass (zinc) Symptom, condition, or disease tc look for Headache, general malaise, irritation of throat, congh, slight nausea, severs chills with fever, profuse perspiration, trembling, muscular pains, exhaustion. Occupations which offer such exposure Bench molders (foundry) Bronzera Blowers-out (zinc smelt Chargers (zinc smelting] ing) Core makers Brass founders Braziers Floor molders (foundry; Galvanlzers Junk-metal refiners Luters (zinc smelting) Poarers (brass foundry) Welder* Zinc smelter* 32 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS 18. Bromine Symptom, condition, or disease to look for Violent Irritation of air passages, bronchitis, and conjunctivitis, sensation of suffocation, skin eruptions, brownish discoloration of skin and mucous membranes. Occupations which offer such exposure Bromine salts makers Color makers Ethylene dibromide makers Disinfectant workers Dye makers Gold extractors Ink makers Platinum extractors Tear-gas makers Tetraethyl-lead makers Photographic-film mak ers 19. Butyl Acetate. See Amyl Acetate 20. Butyl Alcohol Animal experimentation showed marked dermatitis, early liver degeneration, a definite increase in red blood cells, with an absolute and relative lympho cytosis. Occupations which offer tuch exposure Artificial-leather work ers Artificial-silk workers Butyl-alcohol makers Motion-plcture-fllm work ers Perfume makers Photographic-film mak ers Pyroxylin plastics work ers Shellackers Shellac makers Varnlsbers Varnish makers 21. Cadmium Symptom, oondition, or disease to look for Weakness, loss of appetite, nausea, vomiting, headache, shivering, dryness of throat, rapid pulse, fatty degeneration of liver, Inflammation of kidneys, brown urine. Animal experimentation shows generalised pneumonia. Occupations which offer such exposure Cadmium-alloy makers Calico printers Cadmium and cadmium- Chargers (zinc smelting) compound makers Cadmium platers Cadmium - vapo r -1 a m p makers Color makers Electroplaters Glass colorers Llthopone makers Solderers Solder makers Storage-battery makers Welders Zinc smelters and refiners 22. Carbon Dioxide Carbon dioxide is now generally regarded as a simple asphyxiant The symptoms preceding asphyxia are: Headache and vertigo, dyspnea, drowsiness, muscular weakness, flushing of face, tinnitus anrium. Occupations which offer i Alkali-salt makers Bakers Blacksmiths Blast-furnace workers Boiler-room workers Brass founders Brewers Brick burners Caisson workers Carbonated-water makers Carbon - dioxide-ice workers Carbonic-acid makers Charcoal burners Cnpola men (foundries) exposure Divers Drying-room workers Fertiliser workers Foundry workers Furnace workers Glass workers Glue makers Lime burners Llme-klln workers Miners Pottery workers Sewer workers Silo workers Soda makers Starch makers Submarine workers Sugar refiners Tannery pit men Tobacco molstenera (storehouse) Tunnel workers Vatmen Vault workers Vinegar makers Vintners Vulcanizers Well workers White-lead makers Yeaat makers LIST OF HAZARDS, SYMPTOMS, ETC. 33 23. Carbon Disulphide Symptom, oondition, or dlteaee to look for Headache, vertigo, weakness, psychical effects (hilarity, agitation. Irritabil ity, hallucinations, mania), disturbances of sensation, particularly of sight, peripheral neuritis, digestive disturbances. Occupation* which offer each exposure Acetylene workers Driers (rubber) Ammonium-salts makers Dry cleaners Artlflclal-silk makers Electro platers Asphalt testers Enamelera Carbanlllde makers Enamel makers Carbon-disulphide mak Explosives workers ers Glue workers Celluloee workers Insecticide makers Cementers (rubber Match-factory workers shoes) Oil extractors Cement mixers (rubber) Painters Paint makers Paraffin workers Putty makers Reclaimers (rubber) Smokeless-powder mak ers Sulphur extractors Tallow refiners Transparent-w rapping- tnaterial workers Vulcanizers 24. Carbon Monoxide Symptom, oondition, or diteate to look for Tightness across forehead, painfulness of the eyeball, dilatation of cutaneous vessels, headache (frontal and basal), throbbing in temples, weariness, weak ness, dizziness, nausea and vomiting, loss of strength and muscular control, increased respiration and pulse, collapse, anemia, polycythemia, presence of carbon monoxide hemoglobin. Xom.--Poisoning may proceed in some persons to the stage of collapse with out causing any subjective symptoms. Exposure to high concentrations of carbon monoxide for short periods, may, through the effect of oxygen deprivation, cause degenerative changes In va rious tissues of the body. Chronic exposure to low concentrations for long periods of time according to some Investigators, may produce permanent Injury. Occupation* which offer such exposure Acetylene workers Ammonia makers (Ha- ber-Bosch method) Bakers Balloon inflaters Bisque-kiln workers Blacksmiths Blasters Blast-furnace workers Blockers (felt hats) Boiler cleaners Boiler-room workers Brass founders Brick burners Cable splicers Calico printers Carbide makers Charcoal hunters Chargers (foundries) Chargers (zinc smelting) Chauffeurs Chimney masons Chimney sweepers Cleaners (foundries) Cloth singers Coal-tar workers Coke-oven workers Cooks Copper smelters Core makers ' Cupola men (foundries) Drier workers (found ries) Drying-room workers (miscellaneous) Enamelers ' Enamel makers Engineers (stationary) Filament makers and finishers (Incandescent lamps) Firemen (city) Firemen (stationary) Flangers (felt hats) Flue cleaners Foundry workers Fumigatora Furnace workers Garage workers Gas (Illuminating) workers Gassers (textiles) Glost-kiln workers Incandescent-lamp mak ers Ink (printer's) makers Ironers min tenders Laboratory workers Laundry workers Lead smelters Lime burners Lime-kiln chargers Linotypers Mechanics (gas engines) Mercury smelters Methane (synthetic) makers Methyl alcohol (synthet ic) makers Miners Mold breakers (pottery) Monotypers Motion-picture-film work ers Neon lights letter makers Patent-leather makers Phosgene makers Plumbers Pottery (kiln) workers Pressers Puddlers (foundries) Pyroxylin-plastics work ers Refiners (metals) Repairers (foundries) Sealers (lncande scent lamps) Sewer workers Silver melt* Singers (clotL) Soda makers (Leblanc) Soldererc 34 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS Steeple jack* Stoker* Teasers (glass) Telephose linemen (trench work) Temperers Top fillers (foundry) Tubulatorg (Incandescent lamps) Welders Wood-alcohol distillers Wood-charcoal workers Zinc smelters 25. Carbon Tetrachloride Symptom, oon.iition, or disease to look for Irritation of nose, eyes, and throat, headache, nausea and vomiting, loss of appetite, mental dullness, confusion and excitement, dermatitis. Occupations which offer tuch exposure Airplane-dope workers Carbon-tetr a c h 1 o r 1 d e workers Cementers (rubber) Cement mixers (rubber) Degreasers (textiles) Dry cleaners Electroplaters Fire-extinguisher makers Firemen (city) Lacquerers Lacquer makers Metal-polish makers Paraffin workers Perfume makers Rubber workers Vulcan izers 26. Cellosolve (mono-ethyl ether of ethylene glycol) This compound la used as a solvent for nitrocellulose and resins in the manu facture of lacquers. According to the United States Bureau of Mines, animal experimentation shows inactivity, weakness, dyspnea, and death following exposure for 18 to 24 hours tc air saturated with cellosolve vapor (0.8 percent by volume). 27. Chloride of Lime Symptom, condition, or disease to look for Irritating cough. Inflammation of upper air passage, difficulty In breathing, asthma, bronchitis, conjunctivitis, lachrymatlon, hyperhldrosia, burning erup tions on the skin. Occupations which offer such exposure Acetylene workers Bleachers Bleaching-powder mak ers Chloride of lime makers Chloroform makers Disinfectant makers Dye makers Laundry workers Mordanters Tannery workers 28. Chlorine Symptom, condition, or disease to look for Irritation of mucous membranes of eyes and respiratory tract, bronchitis, cough, pulmonary edema, dyspnea, pallid countenance and emaciation, gastric disturbances, decayed teeth, irritation of akin, and chloracne. Occupations which offer t Ji exposure Alkali-salt makers Beatermen (paper and pulp) Bleachers Bromine makers Broom makers Calico printers Chloride of lime makers Chlorine workers Color makers Detlnnlng workers Disinfectant makers Dye makers Extractors (gold and silver) Ink makers Iodine makers Laundry workers Paper makers Phosgene makers Photographic workers Rubber-substitute mak ers Shoddy makers Soda makers Submarine workers Sulphur-chloride makers Tear-gas makers Zinc-chloride makers 20. Chlorodinitrobenzol. See Nitrobenzol 80. Chloronitrobenzol. See Nitrobenzol LIST OP HA2ABDS, SYMPTOMS, ETC, 35 31. Chromium Compounds Symptom, condition, or disease to look for Pitllke phagedenic ulcers, very difficult to heal and very painful, occurring on the skin, moat frequently on the hands, and on the mucous membranes; Inflam mation and perforation of the nasal septum at the cartilaginous portion; eczematous eruptions. Irritations of the conjunctiva and of the respiratory pas sages with rare Inflammation of small areas in the lungs. Occupations which offer tch exposure Acetylene workers Electroplaters Aniline-compound work Enameiers ers Enamel makers Artificial-flower makers Explosives (ammonal and Battery (dry) makers Bleachers pyroxylin) workers Erosters (glass and Blueprint makers Calico printers Candle (colored) makers Carbon printers (photog raphy) Chrome workers Chromium platers Color makers pottery) Furniture polishers Olass colorers Glaze workers (pottery) Ink makers Linoleum workers Lithographers Match-factory workers Compounders (rubber) Mixers (rubber) Crayon (colored) makers Mordanters Dye makers Dyers Painters Paint makers Paper hangers Pencil (colored) makers Photo-engravers Photographic workers Photogravure workers Rubber workers Steel (chrome) makers Tannery (chrome) workers Vulcanizers Wall-paper printers Waterproofers ( paper and textile) Wax-ornament workers Wood polishers Wood stalners 32. Cobalt There Is little Information available on the effects of cobalt. A case of poisoning with severe damage to the liver and kidneys was reported from a French tile factory. Cancer of the lungs Is a recognized occupational Injury among European cobalt miners, but the cause of the condition has not been definitely established. The presence of arsenic In the ore, and the fact that there are radioactive emanations in the mines, have been advanced as causes of the cancer. S3. Copper Whether or not copper is toxic to human beings la still unestablishad. The Inhalation of copper dust Is reported to produce " copper chills ", headache, gastro-enterltls; the Inhalation of fumes, to produce symptoms similar to those caused by zinc fumes. Impurities such as lead and arsenic have been ad vanced as possible causes of reported cases of copper poisoning. Occupations which offer such exposure Copper founders I Copper refiners a n d I Coppersmiths I smelters 34. Cresol (cresylic acid) Symptom, condition, or disease to look for Toxic effects resemble those of phenol but are less severe. The chief symp toms are irritation and erosion of skin and mucous membranes, and nephritis. Occupations which offer such exposure Artificial-resin makers Coal-tar workers Cresol-soap makers Cresylic-add makers Disinfectant makers Dye makers Explosives workers Fumi gators Perfumt (synthetic) makers Resin (synthetic) mak ers Rubber (artificial) workers Tar-distillery workers 36 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS 35. Cyanogen Compounds Symptom, condition, or disease to look for Headache and vertigo, nausea and vomiting, unsteady gait, bitter almond odor in breath, gastro-intestinal disorders, weakness, irregular pulse and respiration, irritation and iniamma,,"i of skin and mucous membranes, mus cular pain and trembling, convulsions, paralysis of legs and arms, functional disturbances of nervous system. Occupation* which offer such exposure Acid dippers Ammonium-salts makers Artiflcial-sllk makers Art-printing workers Blacksmiths Blast-furnace workers Bone distillers Bronzers Browners (gun barrels) Calico printers Case hardeners Coal-tar-distillery work ers Cyanide workers Disinfectant workers Dye makers Electroplaters Extractors (gold and silver) Fertilizer makers Fulminate mixers Fumlgators Gas (Illuminating) workers Gas purifiers Gilders Gold refiners Hydrocyanic-acid mak ers Jewelers Mirror sllverers Mordanters Oxalic acid makers Phosphoric acid makers Photographic workers Picklers Polishers (metals) Pyroxylin-plastics work ers Silver refiners Solderers Tannery workers Temperers Tree sprayers Zincers 36. Dimethyl Sulphate Symptom, condition, or diteate to look for Strongly corrosive effect on the skin and mucous membranes, hoarseness, lachrymation, conjunctivitis, bronchitis, pulmonary edema with hemorrhages, photophobia. Oocupationt xchlch offer such exposure Dimethyl-sulphate mak- I Dye makers ers I I Perfume makers I 37. Dinitrobenzol. See Nitrobenzol 38. Dioxao (diethylene dioxide) This compound may be used in the manufacture of a number of chemicals, and is a solvent for nitrocellulose, etc. According to the United States Bureau of Mines, men exposed to air con taining 0.16 percent of dloxan vapor by volume, immediately noted irritation of the eyes, nose, and throat. It is stated that " as in the case of practically ail comparatively nontoxic volatile liquids, dioxan presents a hazard to life under conditions of exposure to air confined over the liquid in tanks, vats, and similar places where high concentrations would accumulate." 39. Ethyl Benzene This compound is used as an "antiknock", as a lacquer diluent general solvent etc. According to the United States Bureau of Mines, animal experimentation shows Irritation of eyes and nose, apparent vertigo, static and motor ataxia, apparent unconsciousness, tremor of extremities, rapid Jerky respiration, then shallow respiration, and finally slow, gasping respiration, followed by death. All these symptoms and death resulted from 1 percent exposure in from 2 to 3 hours. LIST or hazards, symptoms, zto. 37 40. Ethyl Bromide and Ethyl Chloride Symptom, condition, or disease to look for Bee note nnder Methyl Chloride Occupation* which offer such expoture Anesthetic makers Ethyl-bromide makers Ethyl-chloride makers Refrig :?.tor (mechanical) makers and repair men 41. Ethylene Dibromide Symptom, condition, or disease to look for Irritation of eyes and respiratory tract, vomiting, pallor, weakness, vertigo. Occupation* which offer exposure Ethylene dibromlde makers. 42. Ethylene Dichloride This compound U need as a solvent, particularly In the extraction of oil and fats. According to the United States Bureau of Mines, animal experimentation shows irritation of eyes and nose, vertigo, static and motor ataxia, retching movements, semiconsciousness and unconsciousness accompanied by uncoordi nated movements of the extremities, and death If exposure Is continued. Ex posure to 6 percent vapors caused ell these symptoms, excepting death, to occur In less than 10 minutes, and death in about SO minutes. 43. Ethylene Oxide This compound la principally used es an Intermediate in the synthesis of other compounds as ethel, methyl, and butyl cellosolve, and as a fumigant. According to the United States Bureau of Mines, animal experimentation shows irritation of the eyes and nose; blood-tinged, frothy, serous exudate from nostrils; unsteadiness on feet and staggering Inability to stand; respira tory disturbances; dyspnea and gasping; and death. Most of these symptoms occurred with exposure to concentrations of 8.5 to 0.3 percent by volume. 44. Formaldehyde Symptom, condition, or disease to look for Irritation of mucous membranes, conjunctivitis, bronchitis, dyspnea, severe dermatitis, destruction of finger nails. Systemic effects, Including degenera tion of the liver, have been reported. Occupation* which offer tuck exposure Artificial-amber makers Artificial-silk makers Bakelite makers Brewery workers Broom makers Brush makers , Calico printers Disinfectant workers Dye makers Embalmers Explosives workers Formaldehyde workers Germicide makers Glass etchers Ink makers Insecticide makers Mirror silverers Paper makers Photographic workers Preservative makers and handlers Besin (synthetic) makers Recoverers (gold and silver) Rubber workers Soap makers Straw-hat makers Tannery workers Textile printer* Waterproofers (paper) 38 OCCUPATION' HAZARDS AND DIAGNOSTIC SIGNS 45. Formic Acid. See also Formaldehyde Bymptom, condition, or disease to look for Dermatitis (blisters, ulcerations, necrosis), irritation of mucous membranes of eyes, nose, and throat. Occupations which offer such exposure Alocobol fermenters Laequerers Cellulose-formate makers Lacquer makers Dye makers Mirror Hilverers Electroplaters Mordantera Formic-acid workers Perfume makers Bubber workers Soap makers Tannery workers Varnishers Varnish makers 46. Gasoline. See Benzine 47. Hydrochloric Acid Symptom, condition, or disease to look for Caustic and irritating action on skin and mucous membranes, conjunctivitis, coryza, pharyngeal and bronchial catarrh, dental carles, pulmonary hemorrhagea. Occupations which offer such exposure Acetic-acid makers Acid dippers Acid finishers (glass) Acid mixers Acid recoverers Acid transporters Alkali-salt makers Ammonium-salts makers Aniline makers Artificial-silk makers Battery (dry) makers Bleachers Bronzers Calico printers Camphor makers Carbonizers (shoddy) Cartridge dippers Cement makers C h I o r 1 n e-compound makers Chlorine makers Dye makers Dyers Electropliiters Enamel makers Engravers Etchers Fertiliser makers Galvanizert Glass finishers Glass mixers Glaze mixers (pottery) Glazers (pottery) Glue makers Hydrochloric-add makers Ink makers Jewelers Leather workers Lithographers Metal cleaners Metal refiners Paint makers Paper-mill workers Petroleum refiners Phosphate extractors Photographic workers Plcklers (metals) Pottery workers Reclaimers (rubber) Shoddy workers Soap makers Solderers Sugar refiners Sulphur-chloride makers Tannery workers Tinners Transparent - wrapping- material workers Vignetters Wire makers Zinc chloride makers 48. Hydrocyanic Acid. See Cyanogen Compounds 49. Hydrofluoric Acid Symptom, condition, or disease to look for Intense irritation of eyelids and conjunctiva, coryza, bronchial catarrh with spasmodic cough, ulceration of the nostrils, gums, and oral mucous membranes, painful ulcers of the cuticle, erosion and formation of vesicles, suppuration under the finger nails. Occupations which offer such exposure Aluminum extractors A n 11 m ony-fluoride ex tractors Art-glass workers Bleachers Brewers Dyers Etchers Fertilizer makers Glass finishers Gold refiners Hydrofluoric-acid makers Phosphorus extractors Silicate extractors 50. Iron CarbonyL See Nickel Carbonyl LIST OP HAZARDS, SYMPTOMS, ETC. 39 51. Lead and It* Compounds Symptom, condition, or diteata to look for Ashen pallor, metallic taste, gastrointestinal disturbances, constipation, abdominal paisa, lead line on gums, asthenia, lassitude, headache, backache, pain about Joints, weakness of grip, tremors of Angers and tongue, lead paralysis, especially of muscles used most, stippling of red blood cells, ocular disturbances, mental symptoms (lead encephalopathy). Oocupotlona tchich offer inch expotwra Acid finishers (glass) Amber workers Galvanlzera Garage workers Art-glass workers Artificial-flower makers Babbitters Battery (dry) makers Bench moldera (foundry) Blacksmiths Gardeners Gasoline blenders Glass finishers Glass mixers Glass polishers Glaze dippers (pottery) Blooders (tannery) Bookbinders Bottle-cap makers Brass founders Brass polishers Braziers Brick burners Erick makers Bronzers Browners (gun barrels) Brush makers Buffers (rubber) Burners (enameling) Cable makers Glaze mixers (pottery) G lost-kiln workers Gold refiners Grinders (metals) Grinders (rubber) Heater boys (riveters) Imitation-pearl makers Incandescent -lamp makers Insecticide makers Japan makers Japanners Jewelers Junk-metal refiners Cable splicers Calico printers Conners Cartridge makers Chargers (zinc smelting) Chippers Colorers (white) of shoes Color makers Compositors Compounders (rubber) Concentratlng-mill work ers (lead and zinc) Copper refiners Cut-glass workers Cutlery makers Cutters (oxyacetylene and other gases) Decorators (pottery) Dental workers Diamond polishers Dye makers Dyers Electroplaters Electrotypers Embroidery workers Emery-wheel makers Enamelers Enamel makers Farmers File cutters Filers Filling-station workers Floor moldera (foundry) Labelers (paint cans) Lacquerers Lacquer makers Lead burners Lead-foil makers Lead miners Lead-pipe makers Lead-salts makers Lead smelters Linoleum makers Llnotypers Llnseed-oll boilers Lithographers Llthotransfer workers Match-factory workers Mirror silrerers Mixers (rubber) Monotypers Musical -Instrument makers Nitric-add workers Nitroglycerin makers Painters Paint makers Paint removers Paper hangers Patent-leather makers Petroleum refiners Photograph retouchers Pipe fitters Plumbers Polishers Pottery workers Printers Putty makers Putty polishers (glass) Pyroxylin-plastics work ers Reclaimers (rubber) Red-lead workers Refiners (metals) Riveters Roofers Rubber workers Sagger makers Sandpaperers (enamel ing and painting auto bodies, eta) Screen workers (lead and zinc smelting) Sheet-metal workers Sbellackers Shellac makers Shot makers Slip makers (pottery) Slashers (porcelain enameling) Solderers Solder makers Stainers (shoes) Steel engravers Stereotypers Storage-battery makers Sulphuric-acid workers Table turners (enamel ing) Tannery workers Temperers Tetraethyl lead makers Tile makers Tin-foil makers Tinners Toy makers Transfer workers (pot tery) Tree sprayers Type founders Typesetters Varnlahers Varnish makers Wall-paper printers Welders White-lead workers Wood Stainers Zinc miners Zinc smelters 10 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS 52. Lead Arsenate. 5ee Arsenic; Lead 53. Manganese Symptom, oondition, or ditease to look for Languor and sleepiness, stolid mask-Uke facia) expression, low monotonous voice. muscular twitching, cramps and stiffness of muscles in legs, increase in tendon reflexes, ankle and patellar clonus, retropulslon and propulsion, slapping gait, uncontrollable laughter. Occupations ichich otfer such exposure Battery (dry) maker* Fireworks makers Bleachlng-powder makers Glass mixers Calico printers Chlorine makers Dye makers Glaze dippers (pottery) Glaze mixers (pottery) Linoleum makers Dyers Manganese dioxide Enamelers workers Enamel makers Fertilizer makers Manganese grinders Manganese-ore separators Manganese-steel makers Match-factory workers Painters Paint makers Pottery workers Soap makers Varnishers Varnish makers Zinc miners 54. Mercury and Its Compounds Symptom, oondition, or disease to look Jor Stomatitis and gingivitis, salivation, blue line on gums, gastro-intestlnal disorders, metallic or fetid breath, tremor, mercurial erethism, loss of memory, insomnia and depression, anxiety and irritability, mercurial eczema. Occupations tchick offer such exposure Acetaldehyde makers Acetic-acid (synthetic) makers Acetone (synthetic) makers Disinfectant makers Dye makers Electric Induction fur nace workers Electroplaters Alcohol (synthetic) mak ers Amalgam makers Artificial-flower makers Barometer makers Battery (dry) makers Embalmers Embossers Explosives workers Extractors (gold and silver) Felt-hat makers Blowers (felt hats) Bronzers Browners (gun barrels) Brushers (felt hats) Fireworks makers Fulminate mixers Fnr handlers Fur preparers Calico printers Gilders Cap loaders Carroters (felt hats) Cartridge makers Chlorine makers (elec trolytic ) Color makers Coners (felt bats) Cosmetic workers Cyanogen gas makers Dentists Detonator cleaners Detonator fillers Detonator packers Devil operators (felt bats) Gold refiners Hardeners (felt hats) Incandescent-lamp mak ers Jewelers Laboratory workers Lithographers Manometer makers Mercury-alloy makers Mercury-boiler workers Mercury bronzers Mercnry miners Mercury-pump workers Mercury-salt workers Mercury smelters Mercury-solder workers Mercury-still cleaners Mercury-switch makers M e r c u r y-vapor - lamp makers Mirror sllverers Mixers (felt hats) Painters Paint makers Photographic workers Porcelain makers Primers (explosives) Refiners (metals) Sizers (felt bats) Sole stitchers (Blake machine) Starters (felt hats) Steel engravers Stiffeners (felt hats) Storage-battery makers Tannery workers Taxidermists Thermometer makers Water gilders Welders Wood preservers Zinc-electrode makers LIST OF HAZARDS, SYMPTOMS, ETC. 41 55. Methanol (methyl alcohol) Symptom, condition, or disease to look for Headache, saoaea and reuniting, vertigo, Irritation of mucous membranes, serere colic, convulsions, paralysis, chilliness and cold sweats, cyanosis, loss of reflexes and of sensation, irregular and intermittent heart action, rapid breathing followed by retardation, rapid and marked drop in temperature, affections of sight including amblyopia, optic neuritis, conjunctivitis, mydriasis, nystagmus, visual hallucinations, blindness. Occupations which offer such exposure Aldehyde pumpmen Aniline-dye makers Antifreeze makers Art-glass workers Artlflcial-flower makers Artiflcial-silk makers Automobile painters Bookbinders Bronzers Brash makers Calico printers Cementers (rubber shoes) Dimethyl-sulphate makers Driers (felt hats) Dry cleaners Dye makers Explosives workers Feather workers Felt-hat makers Filament makers (incan descent lamps) Fitters (shoes) Furniture polishers Gliders Hardeners (felt hats) Incandescent-lamp mak ers Ink makers Japan makers Japanners Lacquerers Lacquer makers Lasters (shoes) Linoleum makers Methyl-alcohol workers Methyl-compound mak ers Millinery workers Mottlers (leather) Painters Paint makers Patent-leather makers Perfume makers Photo-engravers Photographers Polishers (wood) Polish makers Pyroxylin-plastics work ers Rubber workers Sheliackers Shellac makers Shoe-factory operatives Shoe finishers Soap makers Stiffeners (felt hats) Stitchers (shoes) Type cleaners Upholsterers Varnlshers Varnish makers Vuleantzers Wood-alcohol distillers Woodworkers 56. Methyl Bromide Symptom, condition, or disease to look for See note under Methyl chloride. Occupations which offer such exposure Methyl bromide makers I Refrigerator (mechanical) I and repair men makers 57. Methyl Chloride Symptom, condition, or disease to look for Progressive drowsiness, vertigo, nansea, staggering gait, mental confnsion, weakness, visual disturbances, tremors, presence of formates and acetone in urine, Insomnia. Note.--Experiments conducted by the United States Bureau of Mines on gninea pigs showed that air containing methyl chloride, methyl bromide, ethyl bromide, and ethyl chloride prodneed similar symptoms, Including excitement, loss of equilibrium. Inability to walk, rapid pulse, convulsive rapid respiration with rales, frothy (often blood-tinged) exudate from nostrils. The signs of lung irritation were not as pronounced for exposure to ethyl chloride as for the other compounds. Occupations which offer such exposure Chloroform makers Color makers Dye makers [ Refrigerator (mechanl- Methyl chloride makers cal) makers and repair I men 42 OCCUPATION' HAZARDS AND DIAGNOSTIC SIGN'S , 58. Naphtha. See Benzine 59. Nickel Carbonyl Symptom, condition, or disease to look for Headache, giddiness. nausea, dyspnea, cough, cyanosis, edema, pain in the loins. Occupation* tohioh offer such exposure Nickel-purification workers (Mond process) 60. Nitraniline. See Aniline 61. Nltrobenzol and Other Nitro Compounds of Benzol and Its Homologues Symptom, condition, or disease to Zoo* for Cyanotic face and lips, nansea and vomiting, odor of bitter almonds In breath, Irritation of skin, lcterlcal skin, visual disturbances, anemia, dark-brown blood, methemoglobln formation, presence of hematoporphyrln, albumin, and some times free poison In urine, tremors, muscular twitching, and other manifesta tions of nerve injury. Occupations tchich offer such exposure Aniline makers Dye makers Ink makers Nltrobenzol workers Explosives workers Perfume makers Floor-polish makers Shoe dyers Smokeless-powder makers Soap makers Trinitrotoluol makers 63. Nitroglycerin Symptom, condition, or disease to look for Intense headache, nausea and vomiting, flushing of face, gastro-lntestinal disturbances, tachycardia, skin eruptions (characterized by dryness and the formation of rhagades). Occupations which offer such exposure Explosives workers | Nitroglycerin workers | Shell fillers 63. Nitronapbthalene. See Nltrobenzol 64. Nitrous Gases and Nitric Acid Symptom, condition, or disease to look for Irritation of air passages, spasmodic cough, dyspnea, pulmonary edema, bronchitis, feeling of suffocation, pain in chest, digestive disturbances, corrosion of teeth, severe burns on he skin. Occupations which offer i Acid dippers Acid mixers Acid recoverers Acid transporters Aniline makers Artificial-leather makers Arttflclal-pearl makers Bleachers Calico printers Carroters (felt hats) Cartridge dippers Collodion makers Damascening workers Dimethyl-sulphate makers Dippers (guncotton) Dye makers oh exposure Electroplaters Enamel makers Etchers Explosives workers Fertiliser makers Fur preparers Galvanisers Gliders Guncotton workers Jewelers Lithographers Mordanters Nltrators Nitric-acid workers Nitrocellulose makers Nitroglycerin makers Nitrous-oxide workers Phosphoric-add makers Photo-engravers Plcklers (metals) Plcrtc-acld makers Pyroxylin-plastics work ers Refiners (metals) Scourers (metals) S m oke le s s-powder makers Soda makers Sulphuric-add makers Towermen (sulphuric add) Wringers (guncotton) LIST OF HAZARDS, SYMPTOMS, ETC. 43 65. Oxalic Acid Symptom, condition, or disease to took for Local caustic action on alcln and mucous membranes, bluish discoloration and brittleness of nails, irritntion of mucous membranes of esophagus, stomach and Intestines, peripheral circulatory trouble, cardiac weakness, convulsions. Occupation* tchich offer such exposure Dry cleaners Pve makers E.. gravers Glycerin refiners Ink makers Lithographers Metal-polish makers Oxalic-add workers Polishers (metal) Straw bleachers Tannery workers 66. Ozone Symptom, oondition, or disease to look for Irritation of eyes and respiratory tract. Occupations ichich offer such exposure Bleachers I Electrical workers I Lanndry workers 67. Petroleum. See also Benzine Symptom, oondition, or disease to look for Inflammation of the skin, acne, suppurating ulcers, papilloma, numbness and irritation of the Schneiderian membrane, headache nud sensory disturbances, affections of the respiratory organs. Occupations which offer such exposure Browners (gun barrels) Feather workers Furniture polishers Lampblack makers Millinery workers Oil-flotation-p 1 a n t workers Oil-well workers Paraffin workers Petroleum refiners Temperers 68. Phenol Symptom, condition, or disease to look for Erosion of the skin, eczema, irritation of respiratory organs, digestive dis turbances, symptoms of degeneration of blood, emaciation, nephritis, gangrene, jaundice. Occupations which offer such exposure Bakellte makers Explosives workers Brewers Calico printers Carbolic-add makers Coal-tar workers Disinfectant workers Dye makers Dyers Etchers - Gas (Illuminati n g) workers Gas purifiers Lampblack makers Paint makers Paint-remover makers Paint removers Perfume makers Phenol workers Picric-acid makers Powder < smokeless) makers Reclaimers * rubber) Resin (synthetic) makers Stlllmen (carbolic acid) Surgical-dressing makers Wood preservers 69. Phenyl Hydraxine Symptom, oondition, or disease to look for Vesicular eruptions of the skin with Itching and burning, diarrhea, anorexia, granular degeneration of blood corpuscles, formation of methemoglobln, a sense of general malaise. Oocupations which offer such exposure Antipyrin maker*. | Dye makers | Phenyl-hydrazine workers 44 OCCUPATION HAZARDS AND DIAGNOSTIC SIGNS 70. Phosgene Symptom, condition, or disease to look for Violent lung Inflammation with edema, necrosla of lung tissue, emphysema, bronchitis, bronchiectasis, dysfunction of the heart, dyspnea. Occupations which offer such expo'"'* Carbon - tetrachloride I Dye makers workers I I Phosgene makers I 71. Phosphorus Symptom, condition, or disease to look for Increasingly severe toothache, Inflammation and sclerosis of the bones and of the perlostenm, swelling and ulceration of the gums and buccal membrane, loosening and falling out of the teeth, suppuration and destruction of Jawbone with fistulous channels burrowing through the cheek, meningeal Inflammation, brittleness of bones, digestive disturbances, emaciation. Occupations which offer such exposure Bone-black makers Brass founders Insecticide makers Match-factory workers Fertilizer makers Phosphate-mill workers Fireworks makers Phosphor-bronze workers Phospborus-c o m p ound makers Phosphorus extractors 72. Phosphuretted Hydrogen (phosphine) Symptom, condition, or disease to look for Oppression In chest, headache and vertigo, gastro-lntestioal Irritation, dyspnea, general debility, tinnitus aurlum, tremors and convulsions. Occupations which offer such exposure Acetylene workers Ferrosllicon workers Phosphine workers Phosphorus extractors Phosphorus (red) mak ers Phosphuretted hydrogen workers 73. Picric Acid Symptom, condition, or disease to look for Irritation and Inflammation of the skin and mucous membranes, yellow color ing of skin, headache, vertigo, digestive disorders, gastric pain, nephritis. Occupations which offer such exposure Dye makers Dyers Explosives workers Fireworks makers Germicide makers Photography workers Plcrlc-acld workers Shell fillers Smokel ess-powder makers Tear-gas (chloroplcrln) makers 74. Potassium Hydroxide Symptom, condition, or disease to look for Severe chemical burning of the akin and mucous membranes, formation of deep-seated and persistent ulcers, loss of nails. Occupations which offer such exposure Bleachers I Oxalic-acid makers Match-factory workers | I Soap makers [ 75. Pyridine Symptom, condition, or disease to look for Irritation of respiratory tract and of eyes, congh, dermatitis. Symptoms following ingestion include headache, Tertlgo, trembling of extremities. LIST OF HAZARDS, SYMPTOMS, ETC. 45 Occupation* which offer inch exposure Denatured alcohol Lacquerers workers Lacquer maker* Gilders Pencil makers Pyridine makers 76. Silver Symptom, oondition, or disease to look for Argyrosis, a grayish blue or black discoloration of the skin and mucous membranes. Is the chief effect reported in industry. Symptoms of Intoxication are reported from Ingestion of soluble silver salts. Occupations which offer tuoh exposure Photographic-film makers Silver melters and re- Sllverers (mirrors) liners Silver-foil makers Silver-nitrate makers Silver platers Silversmiths 77. Sodium Hydroxide Symptom, oondition, or disease to look for Severe chemical burning of the skin and mucous membranes. Formation of deep-seated and persistent ulcers, loss of nails. Occupations which offer tuoh exposure Artificial-silk workers Bleachers Paper makers Soap makers Mercerizers Oil refiners Sodium-hydroxide makers Tannery workers Transparent - wrapping * material workers 78. Sulphur Dioxide Symptom, oondition, or disease to look for Irritation and inflammation of mucous membranes of eyes and respiratory tract, spasmodic cough, bronchial catarrh, digestive disturbances, blood-tinged mucous, inflammation of lungs. Occupations which offer such exposure Alkali salt makers Artificial-Ice makers Blast-furnace workers Bleachers Bone extractors Brass founders Brick makers Broom makers Carbolic-acid makers Cellulose workers Ceramic workers Chambermen (sulphuric acid) Chargers (sine smelt ing) Coke-oven workers Copper smelters Digester-house workers (paper and pulp) Disinfectant workers Dye makers Feather workers Fertilizer makers Flue cleaners Fruit preservers Fumigators Galvanizers Gelatine makers Glass makers Glue makers Lead smelters Mercury smelters Oil-flotation-plant work ers Paper-mill workers Petroleum refiners Pottery workers Pyrites burners Refiners (metals) Refrigerator (mechani cal) makers and re pairmen Smelters Storage-battery chargers Sugar refiners Sulphite cooks Sulphur burners Sulphurers (malt and hops) Sulphurlc-add workers Tannery workers Tower men (sulphuric add) Ultramarine blue makers Vulcanizers (rubber) Zinc smelters 79. Sulphuretted Hydrogen Symptom, condition, or disease to look for Irritation of mucous membranes of eyes and respiratory tract, conjunctivitis, bronchitis, rhinitis pharyngitis and laryngitis, pulmonary edema, headache and vertigo, hyperpnea, gastro-intestinal disturbances, brachyc&rdia. 46 OCCUPATION- HAZARDS AND DIAGNOSTIC SIGNS Occupation* icntcn offer Alkali-salt makers Artificial-silk makers Barium-carbonate makers Blast-furnace workers Bottlers (mineral water) Bronzers Cable splicers Caisson workers Carb on-dlsuipblde makers Cellulose extractors Coke-oven workers Cyanogen makers Dizester-bouse workers (paper and palp) Dye makers Fat tenderers Fertilizer makers Flax-rettery workers Gat (1 lluml n a 11 n g) workers Gas purifiers Glue workers Gypsum workers Hydrochloric-acid makers Hydrogen - sulphide workers Match-factory workers Miners Oil-flotation-plant work ers Oil-well workers Petroleum refiners Phosphorus-comp o a n d makers Pulp-mill workers Pyrites burners Pyroxylin-plastics work ers Sewer workers Soap makers Soda (Leblanc) makers Sodium-sulphide makers Starch makers Sugar refiners Sulphides makers Sulphur-chloride makers Sulphuric-acid makers Sulphur miners Tannery workers Transpa rent-w rapping- material workers Tunnel workers Vulcanizers 80. Sulphuric Acid Symptom, condition, or disease to look for Corrosive action on the skin, severe inflammation of the mucous membrane* of the eyes and respiratory tract, injury to the teeth through softening of the dentine, chronic catarrh. Occupations tohich offer such exposure Acid dippers Acid finishers (glass) Add mixers Acid recorerers Explosives workers Fat purifiers Felt-hat makers Fertilizer makers Acid transporters Galvanlzers Alum workers Glass finishers Ammonium salts makers Glue makers Ammonium sulphate Guncotton dippers makers Hydrochloric-add mak Artificial leather makers ers Artificial silk makers Hydrocyanlc-acld mak Benzene purifiers ers Beta still operators (beta naphthol) Burnishers (iron and steel) Jewelers Linoleum makers Lithographers Mercerizers Calico printers Carbolic-acid makers Nltrators Nitric-acid makers Carbonizers (shoddy) Cartridge dippers Nitrobensene makers Nitrocellulose makers Chambermen (sulphuric Nitroglycerine makers acid) Oil purifiers Color makers Paper makers Dimethyl sulphate mak Patent-leather makers ers Perfume makers Dye makers Electroplaters Petroleum refiners Phenol makers Engravers Etchers Ether makers Phosphoric-acid makers Phosphorus evaporating machine workers Photographic workers Plcklers (metals) Picric-acid makers Pyroxylin-plastics work ers Bayon makers Reclaimers (rubber) Refiners (metals) Salt extractors (coke- oven byproducts) Scourers (metals) Shoddy workers Soap makers Soda (Leblanc) makers Storage-battery workers Sugar refiners Sulphates makers Sulphuric-acid makers Tallow refiners Tannery workers Temperers T o w e r men (sulphuric add) Transparent-wrapping- material workers Wax refiners Wire drawers Yeast makers 81. Sulphur Mouochloride Symptom, oondition, or disease to look for Compound of questionable toxidty. In contact with water it decomposes, forming hydrochloric acid, sulphurous, and sulphuric acid. Injury may result from the presence* of these compounds. LIST OF HAZARDS, SYMPTOMS, ETC. 47 Occupation* icMch offer such expoture Carbon-tetrachloride makers Cement mixers (rubber) Dyers Gold extractors Insecticide makers Rubber substitute mak ers 82. Tar Sulphur mo nochloride workers Vulcanlzers Symptom, condition, or diteate to look for Tar itch, acne, eczema or psoriasis, ulcers of the skin and cornea, epithellom- atous cancer, loss of appetite, nausea, diarrhea, headache, vertigo, irritation of the respiratory tract, conjunctivitis, albuminuria, edema, ischuria. Occupation* which offer tuch expoture Artificial-stone makers Creosotlng-plant workers Asphalt workers Battery (dry) makers Briquet makers Brush makers Chimney sweepers Coal-tar workers Electrode makers Flue cleaners Gas (Illuminating) workers Insulators Painters (tar) Coke-oven workers Cord makers Paint makers Paraffin workers Pavers Petroleum refiners Pitch workers Roofers Roofing-paper workers Still (coal tar) cleaners Tar workers Wood preserver! 83. Tellurium Symptom, condition, or disease to look for Garllc-llke odor of breath and of secretions and excretions, suppression of sweat, dryness of the mouth. Dry Itching skin, metallic taste, anorexia, nausea, vomiting, indigestion, constipation, and somnolence. Occupation* which offer tuch expoture Copper refiners I Glass colorera [ Lead refiners 84. Tetrachlorethaue (acetylene tetrachloride) Symptom, condition, or diteate to look for Abnormal fatigue, profuse perspiration, general discontent and nervousness, headache and vertigo, Insomnia, anorexia, gastro-intestinal disorders, abdominal pains, jaundice, increase of immature large mononuclear cells in blood, eleva tion of white cell coant, alight anemia, slight increase in number of platelets in blood, petechiae, polyneuritis. Occupation! which offer tuch expoture Airplane-dope makers Airplane-wing varnishers Artificial-pearl makers Artificial-silk makers Cellulose acetate work ers Color makers "Dope" worker* Enamelers Enamel makers Lacqnerers Lacquer makers Lithographers Moving-picture-film mak ers Oil extractors Paint-remover makers Paint removers Rubber workers Tapers (airplanes) Varnishers Varnish makers 85. Tetraethyl Lead. See also Lead and Its Compounds Symptom, condition, or diteate to look for Insomnia, nausea and vomiting, anorexia, vertigo and headache, muscular weakness, pallor, subnormal blood pressure, subnormal temperature, loss of weigbt, abdominal cramps, tremors, lead in feces and urine, lead encephalopathy. Ocoupatlont which offer tuch expoture Filling-station workers I Gasoline blenders Garage workers , | I Tetraethyl lead makers j 48 OCCUPATION' HAZARDS AND DIAGNOSTIC SIGNS 86. Thallium Symptom, oondition, or disease to look for Heddish discoloration and falling out of the hair, pains In the limbs, serere eye affections, inflammation of the kidneys. Occupations which offer tuck exposure Artificial-gem makers Dye makers Color makers Depilatory makers Disinfectant makers Filament makers (incan descent lamps) Glass workers Thallium workers Thermometer makers 87. Tin Not generally regarded as an Industrial poison. 88. Titanium Oxide Tbisr compound la used as a substitute for white lead In the manufacture of paint. No ill effects hare been reported as a result of its use in industry. 89. Trinitrotoluol. See Nitrobenzol 90. Turpentine Symphrm, condition, or disease to look for Irritation of mucous membranes of eyes, nose, and upper air passages, cough, bronchial inflammation, salivation, headache and vertigo, irritation of kidneys and bladder, strangury, odor of violets In urine, severe irritation of skin, hardening of the epidermis. Occupatione which offer tuck exposure Art-glass workers Cable splicers Calico printers Camphor makers Cementers (rubber) Decorators (pottery) Dry cleaners Dye makers Enamelers Enamel makers Feather workers Furniture polishers Japan makers Japanners Lacquerers Lacquer makers Linoleum makers Lithographers Millinery workers Painters Paint makers Patent-leather makers Polishers Polish makers Printers Rubber workers Sealing-wax makers Sheilackera Shellac makers Transfer workers (pottery) Turpentine extractors Varnishers Varnish makers 91. Uranium Uranium la a source of radiant energy. It la reported to be the most toxic of metals. 8ymptoma following Ingestion or injection of the soluble salts of uranium are reported to be nephritis, glycosuria, gastro-intestinal disorders, degeneration of the liver, affections of the nervous system, respiratory paralysis. No cases of industrial poisoning have been reported upon. 92. Vanadium Symptom, condition, or dieeate to look for Anemia, cachexia, Irritation of respiratory tract, dry cough resulting in hemorrhages, diarrhea or constipation, emaciation, hysterical manifestations melancholia. Occupations which offer such exposure Mordanters | Vanadium-steel workers I 1 I I USX OF HAJZABDS, SYMPTOMS, ETC. 49 93. Vinyl Chloride This compound is used In the synthesis of organic compounds, principally resins. According to the United States Bureau of Mines, animal experimentation shows unsteadiness and motor ataxia, incomplete and finally complete narcosis. Men exposed to percent for approximately 3 minutes soon began to feel dizzy and disoriented aa to space and size of surrounding objects and complained of a burning sensation In the soles of the feet. They Immediately recovered on leaving the chamber, and complained only of a alight headache which lasted about 30 minutes. 94. Zinc. See Brass Section III.--Dermatoses Skin affections resulting from exposure to the hazards discussed in the foregoing section have been recorded with the symptoms, con ditions, or diseases to be looked for in men employed in occupations where such hazards are present. Because the dermatoses form so large a proportion of all disabling occupational diseases, the more important occupations exposed to agencies producing skin affec tions have been listed separately. A complete enumeration of such occupations would be impracticable. Almost any foreign substance can become a skin irritant if it is in continuous contact with the skin. Thus, soap and water, which ordinarily do not irritate the skin, may cause severe dermatitis in laundresses. Under the derma toses are included the effects on the skin of such causative agencies as poisonous and irritating chemicals, heat and cold, dust, radiant energy, friction, plants and woods, proteins, and vegetable and animal parasites. Occupational dermatoses are frequently distinguished by their grouping, situation, mode of appearance, spread, and evolution. They crop up in series, retaining their initial type throughout, un less thev are secondarily infected. They are most often local, except when tney are a differentiating sign of the toxemias. The onset and development are usually sudden. The inflammation is sharply outlined. Exudation is excessive, and there is a deep-seated edema. The eruption usually predominates on the right siae. Skin affec tions caused by different external irritants often, however, may show the same clinical picture. A number of occupational skin eruptions have no specific lesions or special pathology, which makes their differential diagnosis very difficult. For these reasons, the symptoms for each irritating substance have not been listed as has been done for the other hazards. The excellent work of Dr. R. Prosser White entitled " The Dermatergoses, or Occupational Affections of the Skin ", admirably covers the entire subject of causative agencies and differential diagnosis. It should be consulted by anyone who has a need for an extensive treatmeht of the subject. The data presented in this section are based largely on Dr. White's compilation. The following is a list of the more common occupations exposed to agencies causing dermatoses. It is a partial list only. Reference should also be made to the specific hazards listed for the occupation under consideration in section I. 60 DEB MAT OSES Occupations Exposed to Specified Skin Irritants 51 Occupation exposed Aoetylens makta_______ Add worken______ _ Alkali salt maken______ Artlflrial-flower maken--. Bakallta makata___________ Baken.... ................................. Barbara................................... Battery (dry) makers............ Beatermen (paper and pulp) Bleachan (doth)........ ........... Bloodara (tannery)................. Bobbin carriers....................... Bricklayers.............................. Bremen................................... Broom maken........................ Calico printen__________ Candy makers__________ Cannen________________ Cap loaders-------------------Carbide maken_________ Oarbolloadd maken....... Oardboard stickers______ Carrotan (fait hats)_____ Cartridge dipper*.--_____ Celluloid maken________ Cementen (rubber shoes) Cement workers_________ Chemical workan_______ Chromium platan_______ Cloth pnparan.................. Confectioners......... ............ Cotton slurs...................... Curriers (tannery)............ Dampen (oondltlonlnf cotton) Dentists.'.................................... Detonator deanen___________ Detonator Alien........... ............. Detonator packers..................... Disinfectant maken.................. Druggist*____________ _______ Dye maken................................ Dyen. Electroplaten____ Embalmen______ ____ Engraven...................... Etchen._____ ________ Explosives workers___ Farmers............... . Felt-hat maken___ Fertiliser maken... Fish dreeaen___... Flax splnnen______ Fumaoemen_____ _ Furniture polishen. Fur worken.......... aalvanlxen--................ . Oardenen......................... . Qaa-mantle lmpregnaton. Glass blowers___________ GlMi gwiroffi ||L___ Ink makers............ Inaactldda maken. Skin Irritant* Calcium carbide. Addi. Caustic alkali. Caustic alkali, dye*. Formaldehyde, phenol. Dough, potassium persulphate, beat. Soap, badr tonics. Adas, tine chloride, ammonium salts, charcoal. Caustic alkali, dyes. Adds, bleaching powder, caustic alkali, hydrogen peroxide, sodium silicate. Dyes. Nitrobenxol, aluminum salts, formaldehyde, magnesium salts, sodium fluosUlcate. Lime. Dyes. Dyes, rentable dust. Dyee. Boyar. Fruit adds, lacquer, organisms. Mercury compounds. Caldam earblde. Caustic alkali, pbtnd. Sodium silicate. Adda, maroury compounds. Adda, soap. Dyaa. Benalna, eoal-tar products, naphtha, matbyl aleohel. Lima. Sea apedflo cbamlcml In section n J. Chromium oompounda. Adda, eauatia alkali, lima, soap, potassium salts, sodium aalts, sodium silicate. 8ugar. Adds, sine, chloride, arsenic salts, phenol. Paraffin, bentlne. Nitrobenxol, aluminum salts, formaldehyde, maynadnm salts, sodium floosUioaU. Proealn. Mercury oompounda. Mercury oompoonda. Mercury oompounda. Formaldehyde. Blaachinc powder, soap. Iodoform, sodium salts, suiir. Adds, banxlna, caustic alkali, coal-tar products, dye Interme diatee, dyes, turpentine, antimony oompounda. barium salts, oaldnm salts, creaol, dastrisu, ferroeyaoldes, rormaldcbyds, gums, bydroqnlnona, laad salts, phenol, poteaatum chlorate. Dyes. Adds, hensitie, aauatic el kali, lima, potassium cyanide, soap, nickel sulphate. Formaldehyde. Adda, aanatie alkali, ferric chloridt, potassium cyanide. Adda, caustic alkali. Dye Intermediates, explosives (TNT, etc.), ammonium aalts, bromine, mercury oompounda. 1st tad other plants, fertilisers, Insectlddes. Adds, mercuric nitrate, dyaa. Calcium cyanlmldt. Brine. Lime, brine. Scat Bentlne. caustic alkali, naphtha, turpentine, methyl alcohol, pyridine, resin. Dyaa. iwinaolnm eWorld#. Ivy and other plants, fertilisers, lssectlddaa. Thorium oompounda. Charcoal, pitch, rosin. Caustic alkali. Dyaa. Arsenis. 52 OCCUPATION HAZARDS AlfD DIAGNOSTIC SIGN'S Occupations Exposed to Specified Skin Irritants--Continued Occupation exposed Skin Irritants Lampblack maktn___ Laundry workers___ Lima banian Lima pullan (tannary). Linoleum maken______ .......: use. ................ Lime. ________ 1 Lime. ...............: Dr**. Machinists..................... Masons............................. Match-factory workers.. Meroerixers.................. . Muen (rubber)............. Mordanten.. Mottlers (leather). Cuttlnx compounds, lubricants, oils. Lime. Dyes, dertrlns, rum*. Acids, caustic alkali. Acceleraton (hexamethylenetetramine). '"I Adds, caustic alkali, chromates, zinc chloride, aluminum salts, antimony compounds, enenates. chromium salts, copper salts. Iron salts, lead salts, phosphates, silicates, tin salts. Dyos. Nickel platan............. Nltroflyeerla maken. Zinc chloride, nickel sulphate. Adds, expioslvea. Pecklnf-booje emplo Painten...... ............... Palat maken............. Paper-box maken... Persian workers....... Parchment maken.. Pencil (oolored) maki Petroleum refiners... Photographers......... . Pbotoxraphlc-plsta cli Pitch worken______ Plasterers................. . Polhhen____ ______ Polishers (silver and Pristen............. ...... Brine. dds, caustic alkali, paints, xinc chloride. tlainet.s. armfin. Inc ehlorids. yes. Jaustte alkali, paralBn. Adds, caustic alkali, chromates, matol. pyrofslllc add, tur pentine. amidol, brozulnf powder, bydroqumona, rodlnal. austlc alkalL itch, ilma. austle alkali, naphtha, otaasium cyanide. ', banxina. Radium worken______ Rock-ealt worken..... Ropemaken.____ _____ Rubber worken Radiant enarcy. Aocalarmton (hexamethylenetetramine). Seltpreperen.......... ..................... . Scratch brushers (electroplatln*). Shea flUen___ Shoe Anlsben.. Sirers (ootton). Smelten........... 8oep maken______ Sodium hydroxide 1 Solderen_____ Safer reflnen. Brine. Adds, bensine. lima, oils. Explosives (TNT, ate.). Banxina. coal-tar products, naphtha, methyl alcohol. Zinc chloride, aluminum salts, calcium salts, macnestum salts. Arsenic. Caustic alkali, soap, vegetable oils, sodium silicate. Caustic alkalL Adds, sine ehlorids. . Sugar. Tannery worken........ Tar worken___ . Temperen..................... Tlnnen............ Tobacco rollen____ Tube layen (cotton Typists. Addddss,, lima, sodium sulphide, ananlc alts, brine, calcium bydrosulphlds, chromium salts. Isr. 11. brine. Inc chloride. Vegetable dust. vegetable oils. Nitrebensol. aluminum salts, formaldehyde, magnesium salts, sodium Suoalllcata. Carbon paper. Valcenlzen.... ............. .......... Washers.__ __ Washwomen__ Watchmaken. Waterproolen (paper). Wax-ornament maker Wet-bobbin wlodtn. Wood preserren....... . Aooalaraton (hexamathylanatatramlna). laustic alkalL Iaustlc alkalL soap, sodium salts. `omnium cyanide. `erasa. ye Intermediates, potassium cyanide. ,1ms, aluminum salts, formaldehyde, "r"*ln"' salts, fluosUicata. Tar, tine chloride. Z-ray worken.. Zinc-chloride maken___ Radiant snerfy. Adds, sine chloride. LIST OF BULLETINS OF THE BUREAU OF LABOR STATISTICS The fotloulne is < Uet of all bulletins of tha Buraau of tabor StatUtlet publlthtd tinea July Hit, except that In tha eota of bulletins ttetnf tha rttulta of periodic turctyt of tha Bureau only the latett bulletin on any one tubjtet It harm luted. A complete Utt of tha reportt and bullettne leeued prior to July ttll, at util at the bullattna publlthtd tinea that data, util be furnUhed on application. Bullattna marked that (') art out of print. CoadliatloB ud arbitration (Including strikes aad Iockaata). 'No. 124. Conciliation and arbitration In tba building tradaa of Greater Nsw York. [1913.1 'No. 133. Report of tba Industrial council of tha British Board of Trada on Us inquiry into Industrial agreements. (1913.) 'No. 139. Michigan copper district strike. [1914.] 'No. 144. Industrial court of tha cloak, suit, and skirt Industry of New York City. [1914.' 'No. 145. Conciliation, arbitration, and sanitation In tha draas aad waist Industry of New Vork City. 'No. 191. Collective bargaining in the anthracite coal Industry. [1918.1 'No. 193. Collective agreements In the man's clothing industry. [IBIS.] No. 233. Operation of tba industrial disputes Investigation act of Canada. [1911. No. 255. Joint industrial councils in Oraat Britain. [1919.] No. 283. History of tha Shipbuilding Labor Adjustment Board, 1917 to 1919. No. 287. National War Labor Board: History of its formation, activities, etc, [1921. 'No. 303. Use of Federal power in settlement of railway labor disputes. [1922.] No. 322. Kansas Court of Industrial Relations. [1923.1 No. 341. Trade agreement In me silk-ribbon industry of New York City. [1923.] No. 402. Collective bargaining by actors. [1926.] No. 488. Trade agreements, 1937. No. 481. Joint Industrial oontrol in tha book and lob printing Industry. [1921.] Cooperation. No. 313. Consumers' cooperative societies in the United States In 1920. 'No. 314. Cooperative credit societies (credit unions) in America and in foreign countries. No. 437. Cooperative movement in the United States in 1925 (other than agricultural). No. 531. Cansumcra', credit, and productive cooperative societies, 1929. [1922.] baployment aad tmempfaymeat. No. 109. Statistics of unemployment and the work of employment ofhoes in the United States. [1913.] 'No. 172. Unemployment in New York City, N.Y. (1915.) 'No. 183. Regularity of employment in the women's ready-to-wear garment Industries. (1915.1 'No. 195. Unemployment in the United States. [1916.] 'No. 198. Proceedings of Employment Managers' Conference, held at Minneapolis, Minn.. January 19 and 20,1916. 'No. 202. Proceedings of the oonferanoa of Employment Managers' Association of Boston, Mass., held May 10,1916. No. 206. The British system of labor exchangee. [1916.] ____ `No. 237. Proceedings of Employment Manegars' Conference, Philadelphia; IOP>tad 3,1917. 'No. 235. Employment system of the Lake Carriers' Association. [1911.) 'No. 241. Public employment offices in tha United Ststas. [1911.] 'No. 347. Proceedings of Employment Manegers' Conference, Rochester. N.Y,, May 9-11,1913. 'No. 310. Industrial unemployment: A statistical study of Its sxtent and oaoses. [1922.] No. 409. Unemployment in Columbus, Ohio, 1921 to 1925. No. 542. Rsport or ths Advisory Committee on Employment Statistics. [1931.] No. 544. Unemployment-benefit plus In the United State* ud untmploymsnt Insurance in foreign countrite. [1931.1 'No. 553. Floctuetlon in employment In Ohio, 1914 to 1929. No. 555. Social ud eflonmnio character of tuumploymut In Philadelphia, April 1930. Forelga labor laws. 'No. 142. Administration of labor laws ud factory Inspection In certain European countries. No. 494. Labor legislation of Uruguay. (1929.1 No. 510. Labor legislation of Argutina. [I930.| No. 529. Workman's compensation legislation of tha Latin American countries [1910. No. 549. Labor legislation of VuasueET (1931J No. 554. Labor legislation of Paraguay. (1931.1 No. 559. Labor legislation of Ecuador. [1931.] No. 569. Labor legislation of Mexloo. [1932.1 [1914.1 Housing. 'No. 158. Government aid to bom* owning ud housing of working people in forslm countrie*. [1914.1 No. 263. Housing by employers in the United Static. [1920.] No. 295. Building operations in representative citlaa In 1920. ' No. 545. Building operations in tba principal dtiss of tha United 8tatM in [1921 to] 1930. Industrial accidents ud hygiene. 'No. 104. lead poisoning in potteries, tDe works, ud porcelain-enameled sanitary wire (Sctorlea. [1912.] No. IX. Hygiene of the paintin' trad*. [1913.] 'No. 127. Dangers to workers from dusts ud fumes, ud methods of protection. [19134 (0 IndattrU accidents tad hygiene--Contlnuad. No. Ul. Land poisoning la tba smelting tad refining el Ittd. [1014. *No. 157. Industrial accident xutlstlca. [1915.] No. 185. Lead poisoning la ttat mtaultccurt ol storage batteries. [1914.] No. 179. Industrial poisons used In [be rubber industry. [1915.1 No. 111. Beport of British deptrtauatal committee oo tbe daager in the use ol lead la the palatini ol buildings. [1918.] No. 101. Report or tba committal oa statlstloa and compensation insuraaoe coat of tbe Iaternatloaal - Association of Industrial Accident Boards and Commissions. [1918.] No. XI9. Hygiene of tba printing trades. [1917.) 'No. 219. Industrial poisons used or produced la the manufacture of exploslTae. [ 1917.] No. 221. Hours, fatigue, and baaltb In British munition factories. [1917.1 No. 280. Industrial efficiency and fatigue in British munition factories. [1917.] 'No. 231. Mortality from respiratory diseases in dusty trades (Inorganic dusts). [1918.) 'No. 234. The safety movement In (be Iron and steel Industry, 1907 to 1917. No. 238. Efleeu of the air hammer on tbe bands of stonecutters. [1918.) 'No. 249. Industrial health end efficiency. Final report ol British Heeltb of Munition Workers' Committee. [1919.] No. 251. Preventable death in tba cotton-manufacturing Industry. [1919.] No. 258. Aocidents and accident prevention In machine building. [1919.] No. 287. Anthrax as an occupational disease. [19X.] No. 278. Standardisation of industrial accident statistics [19X.] No. 280. Industrial poisoning In making coal-tar dyas end aye Intermedletee. [1921.) 'No. 291. Carbon monoxide poisoning. [1921.] No. 293. Tbe problem of dust phthisis in tbe granite-stone Industry. [1922.] No. 298. Causes and prevention of soddents In tbe iron and steel Industry, 1910-1919. No. 392. Surrey of bygletsic conditions In the printing trade*. [1925.] No. 405. Pbosgborus necrosis in tba manufacture ol fireworks and In the preparation ol phosphorus. No. 427. Health survey of tbe printing trades, 1922 to 1925. No. 428. Proceedings of the Industrial Accident Prevention Conference, held at Washington, D.C,, July 14-18, 1928. No. 480. A naw test for Industrial lead poisoning. [1928.] :. o. 466. Settlement lor aoddantito American seamen. [1921.] No. 488. Deaths from lead poisoning, 1928-1927. No. 490. Statistics of Industrial accidents In the United States to the end of 1927. No. 507. Causes of death, by occupation. [1929.] redostrial relations and labor conditions. No. 237. Industrial unrest In Qreat Britain. [1917.] 'No. 340. Chinese migrations, with special reference to labor conditions. [1923.] No. 349. Industrial relations In tbe west ooast lumber Industry. [1923.] 'No. 381. Lebor relations In tba Fairmont (W.Va.) bituminous-coal Held. [1924.] No. 380. Postwar labor conditions In Germany. [1925.] No. 383. Work* ooundl movement In Germany. [1923.] No. 384. Labor conditions In the shoe industry in Massachusetts, 1920-1924. No. 399. Labor relations In the face and laoa-curtain Industries is tbe United States. No. 483. Conditions in th# shoe industry In Haverhill. Mass.. 1928. No. 534. Labor conditions In th* Territory of Hawaii, 1929-1930. (1928. Labor laws of tbe United Stetee (lncfndlag decisions of courts relating to labor). 'No. 211. Lebor laws and their administration In tha Pacific States. [1917.] 'No. 229. Wage payment legislation In the United States. [1917.] No. 388. Minimum wags laws of tha United Stetes: Construction and operation. ]192l. No. 321. Lebor laws that have bean declared unconstitutional. [1923.] No. 843. Laws providing for bureaus of labor itetistlei, etc. [1923.] No. 370. Labor laws of the United 8latea. with decisions of courts relating thereto. [1928. No. 408. Lews relating to payment of wages. [1928.] No. 548. Decisions of oourta and opinions aflactlng labor, 1929-1930. No. 552. Labor legislation, 1930. No. 511. Laws relating to employment agendas In th* United States, as of January 1,1933 Proceedings ofannual neaveatloas of th* Amodatfaa of Governmental Official* In Induetry of tba United State* end Canada. (Nam* changed la 1128 from AanocUdsn ef Governmental t^V Officials of lb* United Stetee and Caaada.) 'No. 286. Seventh, Seattle. Wash., July 13-18, 1920. No. 307. Eighth, Naw Orleans, La., May 2-8,1921. 'No. 323. Ninth, Harrisburg, Pa., May 23-36, 1923. 'No. 352. Tenth, Richmond, Va., May 1-4, 1923. 'No. 389. Eleventh, Chicago, UL, May 19-28, 1934. 'No. 41L Twelfth. Salt Lake City, Utah. August 13-16. 1925. 'No. 429. Thirteenth, Columbus, Ohio, JuntT-10,1928. "No. 488. Fourteenth, Paterson, NJ,, May 81 to June 3, 1937. No. 480. Fifteenth, New Orleans, Le,, May 21-34, 1928. No. SOL Sixteenth, Toronto, Canada, June 4-7. 1929. No. 539. Seventeenth, Loutevllla, Ky,, May 20-23. 1930. 'No. SOL Eighteenth, Boston. Mali., May 18-23, 1931. Proceedings ef annual mealing* ef tbe Interaatleaal Aaaodatioa ef ladutrtel Aeddent Board* and No. 210. Third, Columbus. Ohio, April 25-28, 1916. No. 243. Fourth, Bo*ton. Mass., August 21-25,1917. No. 284. Fifth, Madison, WIs., September 24-27, 1918. 'No. 273. Sixth, Toronto. Canada, September 23-26, 1919. No. 281. Savanth, 8an Francisco, Calif., September 20-34.1939. Nn. 304. Eighth, Chleago, HI., September 19-23, 193L No. 333. Ninth, Baltimore, Md., October 9-13,1922. 'No. 359. Tenth, St. Paul, Minn., September 24-28, .931 (XX) Proceeding* *f uaoal meeting* of th* International Aaeoclallon of Indaetriel Accident Board* ud CtMtUdeu-Con tinned. No. 385. Elerentb, Halifax. Nora Scotia, August 30-38, 1921. No. 385. Index to proceedings. 1814-1924. No. 400 Twelfth, Balt Late City, DtaJa, August 17-30, 1623 No. 432. Thirteenth, Hartford, Conn., September 14-17, 1826. No. 436. Fourteenth! Atlanta, Qa., September 27-38, 1837. No. 486. Fifteenth, Paterson, NJ,, September 11-14,1821. No. 611. Slxteeath, Buffalo, N.Y., October (-11. 1828. No. 336. Seventeenth. Wilmington, Del., September 23-36, 1830. No. 364. Eighteenth. Richmond. Va.. October s-8, 1831. No. 377. Nineteenth, Colombo*. Ohio, September 36-28,18331 Proceeding* of annul me*tinge of the International Aeeodation of FnhUe Empseymeot Serrleea. No. 182. First, Chicago, December 18 and 30, 1813: second, Indianapolis, Septembar 24 and 23, 1814; third, Detroit, July l and 2. 1813. No. 236. Fourth, Buflalo. N.Y., July 20 and 21, 1816 No. 311. Ninth, Buffalo, N.Y., September 7-8, 1821. No. 337. Tenth, Washington, D.C., September 11-13, 1822. No. 353. Eleventh, Toronto, Canada, September 4-7,1823. No. 400. Twelfth, Chicago, til., Mev 18-23, 1824. No. 414. Thirteenth, Rochester, N.Y, September 13-17, 1823. No. 478. Fifteenth, Detroit, Mich., October 23-28, 1827. No. 301. Sixteenth, Cleveland, Ohio, September 16-21, 1838. No. 538. Seventeenth, Philadelphia, Pa., September 34-27, 1828; elfhteenth, Toronto, Canada, Sep- tamper 3-12, 1830. Prodacdrity of labor ud technological anemploymenL No. 336. Productivity co6ts la tht oommon-brick Industry. (1824.1 No. 360. Tim* and labor easts In manufacturing 100 pain of shoes, 1823. No. 407. Labor coat of production ud wages and houn of labor In the paper box-board Industry J1836.I No. 413. wtgea, noun, and productivity In th* pottery Industry, 1823. No. 441. Productivity of labor In tbo glass industry (1337.) No. 474. Productivity of labor In merchant blast furnaoa*. [ 182S.) No. 473. Productivity of labor In nawipsper printing. (1828.1 No. 330. Cargo handling and longshore labor conditions. [1832.] No. 374. Technological change* ud employment In th* united States Postal Berrios, [1823.1 Retail pries* ud coat of living, No. 131. Sugar price*, bom refiner to consumer. [1813.] No. 130. wheat ud flour prtoaa, from farmer to consumer. [1813.] No. 164. Butter prioea, from producer to consumer. [1814.1 No. 170. Foreign food prteee as affected by th* war. j 1813.] No. 837. Cost of living In tha United 8tate*. (1924.1 No. 338. Tht os* of oost-of-Uvlng figures In wage adtostmanti. [1828.] No. 483. Retail price*. 1SB0 to 1828. ' Satiety code*. No. 336. Safety coda for th* protaction of Industrial workers In foundries. No. 330. Rules governing the approval of beadllghtlng devices for motor vehleles. No. 331. Safety code for the construction, cere, snd use of ladders. No. 378. Safety code lor laundry machinery and operations. No. 382. Cod* of lighting sebool buildings. No. 410. Safety cod* for paper and pulp mills. No. 430. Safety ooda for power press** ud foot and hud praeiee No. 447. Bafety cod* for rubber mm* and ealuders. No. 431. Safety cod* for forging and hot-matal stamping. No. 463. Safety code for mechanical power-transmission apparatus--first revision. No. 308. Textile sefety ooda No. 312. Code tor Identification of gas-mask aasliters. No. 518. Safety ooda for woodworking plants, as revtsad 1830. No. 527. Safety ooda for th* us*, car*, and protection of abrasive wheels, as revised 1830. No. 556. Cod* of lighting: Factories, mills, end other work places. (Revision of 1830.) No. 562. Safety oodes for th* prevention of dust explosions. Vocational ud workers' edneallea. No. 158. Short-unit eouraee for wag* earaan, and e factory school experiment. (1913.] No. 132. Vocational education (array of Richmond, V*. (18161 No. 188. Vocational education survey of Minneapolis, Minn. (1817.] No. 271. Adult workini-cisas education la Oraat Britain ud the United States. [1820.] No. 438. Apprenticeship in building construction. 11823.] Wages ud hoar* *flabor. No. 146. Wag** and ragularitv of amplpymant and etemiardltatfan of piece rata* In the drees snd , w*]*Industry of New York City. [1914.] No. 147. Wages sad nguUritv of employment In th* cloak, suit, end skirt Industry. [1816] No. 161. Wages end hours of labor la th* clothing end cigar Industries, 1811 to 1813. No. 163. Wages end hoots of laborIn th* budding and repairing of staam-raflroad oars, 1807 to 1816 No. 180. Wages and boon of labor in the ootton. woolen, and silk Industries, 1807 to L814. No. 204. Street railway employment In th* United States. [1817.] No. 216 Wages snd hours of labor In th* Iron and steal industry, 1807 to ISIS: With s glossary of occupations. No. 22S. Wages ud hours of labor la th* lumber, mlllwark. and furniture Industrim, 1815. No. 263. Industrial surrey In selected Industrim In the United 8tatas, 1918. No. 287. Watts and hours of labor In the petroleum Industry, 1820. No. 356. Productivity cost* In th* oommon-brick Industry. 11826) No. S6S. Wage* end hours of labor In th* automobde-tlr* Industry, 1826 No. 360. Tim* snd labor ooete In munfacturing 100 pairs of ehoes, 1823No. S6S. Wages end boors of labor In th* peper end pulp Industry, 1926 No. 407. Letxw oost^of production and wage* ud hours of labor In th* peper box-board Industry, [1936.] Wigee tad kenre *f laker--Continued. No. 4J2. boon, and productivity In the pottery Industry, Ml. No. ns. Hour* and aerainfs in ancbraat* and bltnmlnom coal minim. 1923 and 1924. No. 4S4. Wage* and boon of labor of eomtaon atrooc laborers, 1938. No. 499. History of neat In tha United Statu from ooloaial time* to 1938. No. US. Wafas and boors of labor In tba motor-vehicle Industry. 1938. No. 804. Wages and boors of labor la tba hosiery and undarwoar Industrial. 1907 to 1938. No. 814. Pennsylvania Railroad ra|a data. From Roport of Joint Fact Flndlnr Committaa In tba waca negotiations in 1917. No. 818. Hours sad earnings la bltumlnous-ooaJ mining. 1929. No. 823. Wans and boars in tba manufactura of alrplanas and aircraft amines. 1939. No. 828. Wafas and hours of labor la tha Portland camant industry, 1929. No. 332. Wafas and hours of labor In tha cigarette manufacturing Industry. 1930. No. 833. Wafas and hours of labor in woolan and worsted foods manufacturing, 1910 to 1930. No. 834. Labor conditions in the Territory of Hawaii, 1929-1930. - No. 338. Wages and bouts of labor in tba slaughtering and meat-packing industry, 1929. No. 837. Wages and hours of labor in the dyeing and finishing of textiles, 1930. No. 839. Wages and hours of labor In ootton foods manufacturing, 1910 to 1930. No. 848. Wages and boors In rayon and other synthetic yam manufacturing, 1930. No. 847. Wages and hours in cant sugar refining Industry, 1930. No. 887. Wsgss and hours of labor In tbo man's dothlng Industry, 1911 to 1930. No. 880. Wages and hours of labor In tbo lumbar Industry In tba United States, 193& No. 868. Union scales of wages and boors of labor. May 15. 1931. No. 887. Wages and boon of labor In tha (too and steel industry. 1931. No. 888. Wages and boors of labor In tbs manufacture of silk and rayon goods, 183L No. 570. Wages and hours of labor In foundry and machine shop*. 1931. No. 57L Wages and hours of labor In the furniture Industry, 1910 to 193L No. 571 Wages and hours of labor In mttallifaroaf mines, 1924 to 193L No. 575. Wages and hours oflebor In sir transportation. 1931. No. 578. Wages and hours of labor In tba slaughtering and meat-packing industry, 1931. No. 571 Wages end hours of labor In gasoline filling stations and motor-vehicle repair garages, 1931. No. 879. Wages and boors of labor In tba boot and shoe Industry, 1910 to 1932. No. 88a Wages and bouts of labor In tba bakery industry--bread and oaka departments, 1931. Welfare work. No. 123. Employers' walfora work. (1913.) No. 221 Welters work In British munition factories. 11017.1 No. 280. Welfare work for smployaas In Industrial establishments la the United States. No. 481 Health and recreation actlrltfoe In Industrial establishments. 1928. 11919.) Wholesale prlnas No. 284. Index numbers of wholesale prioes la tha United States and foreign ooontries. (1921.] No. 483. Revised index numbers of wholesale prioat, 1923 to July, 1927. No. 872. Wholesale prioes, 192L Womea and chlldm la ladoatry. No. U8. Hours, earnings, and duration of employment of wage-earning woman in selected Industries in the District of Columbia. (1913.) No. 117. Prohibition of night work of young parsons. (19U.) No. 118. Tea-bour maximum working day for woman and Voting parsons. (1913.1 No. 119. Working hours of woman in tba pea canneries of Wisconsin. (1913.1 No. 222. Employment of woman In power laundriee fn Milwaukee. (1913.| No. ISO. Hours, earnings, end conditions of labor of woman In Indiana mercantile eetablisbmenta and garment factories. (1914.) No. 187. Minimum-wage legislation in tbe United Statu and foreign oountrlea. (1918.1 ' *No. 178. Summary of the report on conditions of woman and child wage earners In the United States- 11916.) No. 178. Eller: of minimum-wage determinations In Oregon. [1918.] No. 180. Tbs boot and sboe industry in Massachusetts as a vocation for women. (1918.) No. 182. Unemployment among women In department and other retail itores of Boston, Mau. (1918.) No. 193. Dressmaking as a trade for woman In Massachusetts. [1918.) No. 215. Industrial experience of trada-echool girls In Mauachosetta. (1917.1 No. 217. Effect of workman's compensation laws in diminishing tha neeaasity of industrial employ ment of woman and children. (1918.1 No. 223. Employment of woman and juveniles in Greet Britain during tba war. (1917.) . No. 283. Woman in the lead Industrie*. (1919.) No. 487. Minimum-wag* legislation in various countries. (1928.1 No. 883. Labor conditions of womss and children In Japan. [I93L] Workmen' laatnaaee and oampeaaaffoa (iadadlng lawn relating tbarata). No. 101. Cara of tuberculous wags samara In Oernuny. (1912.) No. 102. British national insurance act, 1911. No. 103. Sichuan and accident insuraao* law in Seritsarland. [1913.1 No. 107. Law rtiating to insurance of salaried employees in dermany. (1913.) No. 188. Compensation for aoddant* to employe** or tha United Statu. 11914.] No. 212. Proceedings of tha oonferanoa on soda! inxurano* called by the international Association of Industrial Accident Boards and Commissions. Wuhlngton. D C.. December 8-4, 1918. No. 243. Workmen's compensation legislation in tbe United States end foreign countries, 19l7and 1918. No. 301. Comparison of workmen's oompansatlon Insurance and administration. (1922.) No. 312. National health Insurance In Qreat Britain, 1911 to 1921. No. 379. Comparison of workman's oompansatlon laws of tha United Statu aa of January 1, 1928. No. 477. Publio-sarvloa retirement systems. United 8utu and Enropt. (1929.1 No. 498. Workman's compensation legislation of tba United Statu end Canada u of January L 19291 (With tart of legislation enacted In 1927 and 1928.) Ne. 828, Workmen's compensation legislation of the Latin American oountriu [193a] trr] No. 174. 8ub]*et Indix of tb* publication* of tbo United Stete* Baraea of Labor Statistic* up to Mar l, uu. No. 90S. Profit ibarlnc la tbo United State*. 11918.] No. 942. Pood litaatioa la oaatnl Europe, 1917. No. 284. Zataraatieaal labor laflilatioa and tbo society of nation]. (1919.] "No. 388. Hljtorloal rorray of latamatlonaJ action affactlnc labor. [1920.] No. 282. Mutual raliaf aaodatlona atnonr Oorernment employ*** la Waahlnrton, D.C. [1931.] No. 219. Tbo Bureau of labor Statistic*: It* binary, octlrltl**, and ortanlzatlon. [1923.1 No. 322. Motbodi of^Tocurlat and oomputlac statistical Information of tbo Boroan of Labor Butt*. No. 342. International Seaman's Union of Amarloa: A Jtudy of It* history and problam*. 11922.1 No. 34fi. Humanity la toyammaat. [1923.J No. 372. Conrlct labor la 1923. No. 328. Coat of American alnuhntua* 11928.] No. 398. Orowth of localaid work in tbo United State*. [1928.] No. 401. Family tUowar.oe* la foralrn oouatrloa. 11928.) No. 481. Labor er(iaixatloni la Cbaa. [1998.] *No. 485. Beneficial aetlritie* of American trade-union*. 11932.] No. 479. Aetiyitle* and function] of a Stat* department of labor. 11928.] No. 489. Cara of scad parsons la United Star**. [1939.1 No. 805. Directory of noma* for tb* acad la tba Unitad Statee. [1929.1 No. 508. Handbook of American trada-anion*. 1929 edition. No. 512. Panoanal raaaareb ifend**, 1930 edition. No. 841. Handbook of labor stall*tics. 1931 edition. No. 551. Public old-are pension* and laiaranee la tb* United state! and la Amiga eoontria*. [1922.) No. 585. Park ramaaooa area* in tba United State*, 1930.