Document Lg2ynED3nrZdJyn7e6OVLzJDq

- -yt**** , W / y** . JANUARY, 1945 Industrial Hygiene Digest BaBHCSaaHBBaBKSBBBVBB8BBBSSSSSBSaBaaiB^^^BaBSaBSBaEaBaBaBBaaBBa9BBBaB9MHHaBaBBHHiHBHMBaMHMMi (Vol. 9, No. 1) Slitelatule Gbsfoacts ` MEDICAL ENGINEERING LEGAL - - - decisions and trends 0H&ust\ial Health 1lews ..'Zf-'f INDUSTRIAL HYGIENE FOUNDATION 4400 FIFTH AVENUE PITTSBURGH (13), PA. PLAINTIFF'S EXHIBIT graft -Cfll 9% IHDUI^IAL HYOIINI foundation YOI. 7 FOUNDATION FACTS January. 1945 ,.... Foundation Facta la a monthly nawa-lattar itauad to Industrial concerna holding mambarahlp In Induatrial Hygiene Foundation. The Foundation ia a non-profit aaaoclatlon of induatriea for tho advancement of healthful working condition*. No, 1 Veterans Panel No 4 2 Published The panel discussion, "Putting the Disabled Veteran Back to Work,II", a ! feature of the foundation's Ninth Annual Meeting, has just been published and is now L_ beitng mailed to Member Companies and^Subscribers. This is a continuation of the panel discussion inaugurated at the foundation's Eighth Annual Meeting in 1943 and which was issued a year ago* separate from the regular Proceedings* These companion ' publications are hailed by authorities on veteran rehabilitation as two of the most practical and valuable reports yet issued on the subject* Other Publications in Press Instead of printing the Proceedings of the 1944 Annual Meeting ill one pub lication, as in the past,' the material will be published in several separate reports, to make for more efficient circulation. Tho veterans panel constitutes Part 1* The next part will be the panel discussion on "Sickness Indemnification*" This will bB : followed by the Legal Section of the program at the annual meeting and the Medical ' ^and Engineering Sections. The insurance and legal reports will be published shortly,. *** New Book on Industrial Environment '^ J.M. DallaValle, a member of the Foundation's Engineering Committee, has ' completed a book, "The Industrial Environment and Its Control," which is to be pub-! lished this Spring* The book is divided in two parts, (a) The Worker's Environment, (b) Control of the Environment. For further information address the Foundation or Dr. DallaValle at 70 Pine St., New York City. Reprints Available on Medical Service in Industry The Council on Industrial Health of the American Medical Association has* at our request, provided the Foundation with a supply of reprints of its recently revised report on "Medical Service in Industry, Industrial Health Examinations.^ Members interested in equipment and procedures for physical examinations should ' have this report. Copies may be secured from the Foundation. The Council has cancelled its annual Congress on Industrial Health, which . was scheduled for February 13-15 in Chicago, in compliance with the recent order of;:;r; the Office of Defense Transportation respecting national meetings. Membership Certificates Membership Certificates for 1945 are now being lettered and Membesra will receive the certificates as rapidly as they can be completedv-'llanv ^ompaBi^s ere' requesting sufficient copies to post in their various plajjtte or nrdl'lii tions of a single plant. Members may secure as many certfificaieilred *- their needs. .f 7 '> .Maintain Manpower AAf>r> HTTW 4VFNIIF PITTSBURGH (ts). PA. Hygiene Digest - 19 :^Tial January, 1945 inhibit the development of fibrotic nodules in the- tracheobronchial lymph- i do a0*0f mice. The tissue of these nodes, thurefo re. reacts differently from the t^ides issue of rabbits. -- Author's summary i'ing t . nt~ihution to the iiagnosis of Pulmonary ilicosis by the Investigation of & d-^rrrTTthe BlopQ and Sputum. K. Oyanguren nd E. Bartholin. Rev. med. de ^iJi\rlXri.ydv i>ag77n11,o. s4is64o(fMsaiyl,ic1o9s43is has been confirmed by demonstration of silica in ti If:Gturn" and blood of 40 individuals. Silica which is conveyed to the lungs by m- 5?i-tion is taken up in greater part by the lymphatics end the remainder is ex,h` *^r5>ted. Silica interferes with the lymphatic circulation, producing a fibrous Proliferation which eventually results in the inclusion of the particles them- ^ives. But before this occurs the silica which is inhaled passes through the 5i-od nd may be excreted in the urine. Silica may normally be found in the blood but if the quantity is less than 3 mg. percent as determined by the colorimetric aei;bcd, it is believed to be of no clinical significance. Quantities from 12 to o') n~. percent are expressed as 1 plus, from 20 to 50 mg. percent 2 plus, end ^bove 50 mg* percent 3 plus. Positive chemical reactions for silica in the spu tum may be obtained in all cases of silicosis. The positive reactions in the oicod correspond to the .amounts of silica contained in the sputum and positive chemical reactions are found only in those individuals who have been exposed to silica-bearing dust. The specific chemical reaction used is that described by Oberhauser and depends on the reaction obtained with nitromolybaonate of ammonia. This may be used equally cn the blood and sputum and is a more certain test than the spectrographic methods. -- Am. Rev. Tuberc. g0 The Asbestos Corn. H.S. Alden and TAr.M. Howell. Arch. Dermat. and Syph., 49_, 312 (May, 1944) The author describes corns or warts peculiar to asbestos workers, first noticed by Derwitz in 1930. They have no relation to asbestos of the lungs. One charac teristic is that they appear and feel as if a foreign body were present* none is ever found. It is probable, however, that one is present in the very early stages. 69 Asbestosis and Pulmonary Carcinoma. H.W. Wedler. Deut. mod. Wochschr., 69. 575576 (Aug. 6, 1943) German. The author has collected the published autopsy records on asbestosis from various countries and finds that there have been 14 instances of malignant disease of the lungs and pleura in 92 post-mortem exominations (16 percent). This is in excess of the proportion of lung carcinomata in autopsies generally (2-6 percent). Car cinoma as a complication of asbestosis occurred most frequently in males between 35 and 41 and was generally in the part cf the lung most affected with asbestosis. Development of the lesion was slow but corresponded with the length and intensity of the exposure (12-42 years). There was often a long interval between the ces sation of exposure and the development of the cancer, which, in the author's view, must now be regarded as an occupational cancer. -- Bull. Hyg. Skin Diseases and Burns ^ A New Protective Cream. J.G. Downing, L.M. Ohmart and M.J. Stoklosa. Arch. Der- mat. and Syph., 49_, 436 (June, 1944) In industries where workers are exposed, to dermatologic irritants, and where it is impracticable to wear gloves, protective creams help to minimize cutaneous ir ritations. Many protective creams are on the market under trade names, and. should