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Number I JANUARY, 1941 HIGHLIGHTS Housing outhori+y official tails why \$$d and soil makes a better plumb ing Installation. Tha Lead Industries Association Standard tor Lead Traps and Bands is now revised and simpiitied. Two churches---one always painted with white lead with excellent results--the other changed from white lead, met with trouble, and is now relying again on white lead only. A large drug store solves its waterproofing problem for a soda fountain with an economical sheet lead installation. e Three charming ofd New England homes of historic Portsmouth, N. H, are portrayed in this month's Port folio of American Landmarks. e Prominent aircraft manufacturer devises new melting pot for zinc using molten leed to assure uni form heat transfer. One of the northwest'$ out* standing housing projects, the Silver Bow project in Butte, Montana, uses all lead waste to the vent connections, lead bends, drum traps, lead roof flashing and service pipe goosenecks. Approximately 40,000 lb, of lead products are used in the plumbing for the Silver Bow project. Walter Arnold is the architect; Lovering Construction Co., general contractor and George A. Green Plumbing & Heating Co,, plumbing contractor SIMPLIFIED STANDARD jo* Establishes one uniform wall thickness of jn f all sizes and shapes of lead fittings. Eliminates obsolete and little-used fittings. 0 Simplifies dimensions. 0 Greatly reduces the number of items in the standard list. Maintains the same close control of metal purity wall thickness, concentricity and weight previously in effect in the Lead Industries Association Standard. endi EFFECTIVE JANUARY I, 1941 IGHEST quality installations this assurance of quality and depend H serving well and economically ability. for many years are expected of lead in It reduces the number of items plumbing. Lead Industries Associa stocked and sold, simplifying pur tion standards were originally adopted chase and sale, and reducing handling to assure dependable materials to fully cost. Specifying and selecting the realize this expectation. The new right fitting for a job is made easier. standard for lead fittings strengthens Uniform wall thickness assures fit tings of proper weight insuring lead's lasting, trouble-free service. Home owner, architect, jobber and plumber can all benefit by using the new standard list and by specifying and purchasing only lead fittings bearing the Seal of Approval, indicating they meet the new association standard. WALL THICKNESS OF ALL TRAPS AND BENDS IS 0.125 IN. MINIMUM TRAP SEAL IS 2 IN. NOTES Inlet dimensions listed first in all cases. Traps and bends meeting this standard in all other respects, but having greater nominal wall thickness than V% in., are considered as meeting the standard and may be stamped with the Lead Industries' Seal of Approval if they are clearly stamped with their wall thickness or weight per running foot. Traps and bends meeting this standard in all other respects, but having di mensions different from those listed, are considered as meeting the standard and may be stamped with the Lead Industries' Seal of Approval if they are clearly stamped with their inlet and outlet dimensions. S-traps are included in this standard to assure their quality when used, but their inclusion is not to be considered as an endorsement of this patten of trap. Vi S or P TRAPS SHORT LONG Inside Inside Diameter Dimensions Total Weight Diameter Dimensions Total Weight In. In. Lb. Oz. In. In. Lb. Oz. iy* 4% x 7 40 I1/. 4 Vfe x 14 59 1 Vs 4 V x 7 4 15 iy. 4 V2 x 1 4 6 12 2 4 Vs x 8 72 2. 4 Vs x 14 9 3 4U x 7 iy* 4 Vi x 7 2 4% x 6 FULL S TRAPS 49 5 10 85 I1/. 4^x19^ 7 6 tv. 4 % x 19 Vs 8 14 2 4 % x 1 9 V* 12 4 DRUM TRAPS Inside Diameter In. 4 4 4 inside Depth In. 8 9 10 BENDS Inside Diame er 1 Vs in. Dimensions In. Total Weight Lb. Oz. 4x7 4x12 4x15 4 x IS 4 x 20 7x7 7 x 12 7x15 7 x 16 7 x 20 2 12 41 13 10 62 8 4 13 10 66 6 15 5Va x 10 51/2 x 12 51/* x 15 SV2 x 18 51/s x 20 10 x 10 10 x 12 10 x 15 10 x 18 10 x 20 3 in. 73 83 9 12 14 12 4 98 10 8 12 0 13 8 14 8 5 Vs x 10 51/3 x 12 5 Vs x 15 51/2 x 18 5Va x 20 10 x 10 10 x 12 10 x 15 10 x 18 10 x 20 4 in. 95 10 10 12 10 14 10 16 0 12 5 13 10 13 10 1 10 18 1 3 [2] LIA25630 LUMBING in a recently erected Lead Soil Pipe Solves Problem oi Cramped Spacegirls' dormitory at Baylor Univer Psity, Waco, Texas, shows strikingly how lead helps to solve plumbing installation problems arising from in Baylor University Dormitory cramped or too little space. In the basement of this building two laundry travs and a slop sink are installed, in addition to a complete bathroom and two extra lavatories. The bathroom has a 16-in. raised floor but the other fixtures are installed where the floor is not raised. Because of the elevation at which the cast-iron sewer enters the building there is not sufficient drop be tween the laundry tray and slop sink outlets and the sewer to install cast Rough plumbing in basement of new dormitory at Baylor Univer sity, showing how 4-in. lead soil pipe was used to get proper pitch GILDERSLEEVE iron with proper pitch for drainage. The necessary cast-iron fittings would have taken up too much space. To solve this problem, 4-in. lead horizontal pipe for proper drainage. throughout in accordance with Waco pipe was run in the basement from the Lead fixture connections were also practice. The building, consisting of sewer and lead fixture connections provided for the nearby lavatories four stories and basement, with kit provided to it. The vertical space and the water closet was connected to chen and dining room, was complete.; required was thus reduced tremen a lead bend. in three and a half months. Birch D. dously, permitting installation of the The entire building accommodates Easterwood & Son were the architects, fixtures at the desired elevation and 175 girls and has 75 bathrooms. A and the Hill Plumbing Co., of Waco, maintaining the required pitch in the lead and soil system was used the plumbing contractor. Improved Zinc Melting Pot for Martin Aircraft Company Relies on Lead UNIQUE melting pot, the oper lead is melted. An inner pot contain A ation of which is greatly depen ing the zinc is immersed in the lead. dent on lead, has recently been deveTlhe molten lead keeps the heat evenly exceptionally high degree of purity re sults and that the inner pot will now last indefinitely. oped by the Glenn L. Martin Comdistributed over the surface of the zinc The new melting pot is one more pany, Baltimore, Md., and is reported pot, minimizing any tendency of the example of how lead, although play to be the solution to a trying indus zinc to alloy with the pot. ing a minor role, is responsible for trial problem--the efficient melting of It is reported that molten zinc of an much progress and success in industry. zinc. Heretofore, zinc had been melted simply by putting it in a pot and put Plant view oj the improved melting pot for zinc, designed by the Glenn L. Martin Co. Lead makes its operation practical. ting fire under the pot. In this system, COURTESY GLENN L. MARTIN CO. however, heat would concentrate at certain points, the zinc alloying with the pot metal at those points, and the melted product would usually turn up with impurities from the contact. Moreover, the pots have been short lived, eroding at the points of maxi mum heat, a factor of additional equipment expense. In order to pro duce better metal for die-making and to reduce the cost of pot replacement the Martin Company research staff de veloped a double-boiler typeofmelter. They built a large pot with a combus tion chamber underneath, and covered it with refractory material. In this, 1 The Langley Boardman House, built about 1800. The per fect door heads, the exquisite front door with its oval panels inlayed with whale bone, and the general refinement of detail, lead authorities to believe that Langley Boardman. a cabinet maker by trade, designed his own house. The oval staircase stretching from the first to the third floor of the interior reveals a grace and symmetry of form rarely seen in modern homes. Pure white lead paint pro tects this excellent prototype of the Colonial town house Governor John Langdon. first president of the United States Senate and governor of New Hampshire, built this mansion in 1784. The interior as well as the exterior illus trate the skill the early craftsmen had attained in creating the fully developed charm of the colonial mansion. This magnificent example of early American architecture re tains all its original beauty with pure white lead and oil T AN early date in American history, Portsmouth A^ N. H., took its place as one of New England's most important and prosperous seaports. An excellent natural harbor at the mouth of the Piscataqua River, a fertile country-side and a seemingly inexhaustible sup ply of timber were the contributing factors in its early development and rise to importance. From Colonial Days to the early part of the nineteenth century, this de velopment was continuous and rapid. Clipper trade with the far east and Europe was at its height: ship owners and traders sometimes became wealthy over-night and with this new found prosperity they built mansions. For tunately, many of these beautiful colonial homes of Portsmouth remain in excellent condition today. It is no accident that has allowed these early colonial mansions to remain for so many years in good condition. They were framed with tremendous oak beams of a strength sometimes far exceeding the structural need. Also, the exterior refinement of architectural detail has been protected from the rigorous New England winters by pure white lead and oil paint. Because the majority of Colonial Portsmouth homes have been painted peri odically with pure white lead paint for the best part of two centuries, these homes today present a beautiful fresh surface free from any paint failure. Three of these cele brated landmarks of old Portsmouth are pictured here. - THIS IS NO. 5 IN OUR REPRESENTATIVE SERIES OF AMERICAN LANDMARKS PROTECTED FOR THE FUTURE TODAY, AS MANY HAVE BEEN FOR THEIR ENTIRE LIFE, WITH PURE WHITE LEAD PAINT. The John Paul Jones House, built about 1759 by Captain Gregory Purcell. After the death of Captain Purcell, his widow ran a boarding house in which Captain John Paul Jones is believed to have spent the happiest years of his life while he was studying naval theory. Today the house is a public museum owned by the Portsmouth Historical Society. Pure lead paint tinted to a colonial yellow protects the 181 year old exterior of this American landmark I [4] LIA25632 HousingAuthority Official TellsWhy Lead Plumbing is Best LETTER, written by James A. A Brownlow, vice president of the Denver Housing Authority, tells clearly from a naturally informed source the benefits derived from lead in modern plumbing. It refers to Lin coln Park Homes, built under the aus pices of the United States and Denver Housing Authorities, a $3,500,000 project with a plumbing and heating contract totaling $232,000. In his letter Mr. Brownlow says. "This is a lead and soil job. The lead bears the Lead Industries' Seal of Ap proval. ... I cannot speak too highly of the materials being used or the workmanship displayed on this job. Denver has been what is ordinarily known as a lead town for a great many ,4 shop view at Lincoln Park Homes, Denver U. S. H. A. Hous ing Project. All lead frames were prepared in the shop in the mode r n production method of lead working MILE HIGH erly installed is far superior to any other material which may be used, . . . to the far-sightedness of the lead man ufacturers in producing a product which really meets the specifications and standards called for and which Close up of lead roughing for a double bathroom in the Denier project MILE HIGH years; however, some years ago there was a gradual replacement of lead and soil. This condition is again being overcome and architects are specifying lead and soil in most of the major con struction projects in this area. This change is due to a great extent to the universal knowledge that lead prop- serves the purpose for which it is in stalled. ... St. Anthony's Hospital. Crippled Children's School, Capitol Annex, and the Housing Project are but a few of the large construction jobs that have installed or are install ing lead at this time. With this con tinued cooperation, you may be as sured that the use of lead will con tinue to grow in the City of Denver and surrounding areas, and we feel that due to the fine results obtained here an example will be set for other cities to follow." There is little that could be added to this analysis of lead's part in plumb ing. The amount of lead used in the project bears out the fact that the writ ten opinions of Mr. Brownlow are put in practice and not merely theoretical. In the Lincoln Park Homes there are 357 extra-heavy lead bends. 349 extra heavy lead drum traps. 14.110 lb. of lead waste pipe. 3.230 lb. of wiping solder. 27.200 lb. of calking lead, and 6.200 lb. of 6-lb. sheet lead for roof flashings made up bv the plumbers. Temple H. Buell is the architect and W. T. Hedgecock executive director of the Denver Housing Authoritv. W'hiteley-Palmer Co., of Logan, Utah, is plumbing contractor, with J.M. Whiteley supervising the job. Churches - East and West - Rely on White Lead LTHOUGH the Lutheran St. A^ Paulus Church of San Fran cisco, Cal., and the First Church of Christ. Longmeadow, Mass., represent two widely different architectural types on opposite coasts, nevertheless the same careful attention has been paid to their painting, a good practice for which all churches all over the country are noted. Built in 1892, the Lutheran St. Paulus church exemplifies the Gothic type of architecture generally associ ated with European cathedrals. Elab orate systems of arches and windows are set off by ornate wood trim. Sidewalls are of smooth-finished, matched weatherboarding, while the founda tion and lower walls are constructed of brick. The recent painting of the church was done with white lead, the church fathers having learned a bitter lesson in painting practice since the previous painting had been done with inefficient material. Naturally, the re sult was that the whole structure had to have the failed paint job burned off before repainting with time-tested white lead. Confidence has been ex pressed by' those connected with this job that now there will be no further difficulties. Redecoration was done by Ferdi nand Terhevden & Bros., painting con tractor, under the supervision of Otto G. Hinterman. architect. The First Church of Christ, the Con gregational Church of Longmeadow. Mass., is representative of many simi- [5] LlA25633 The beautiful Longmeadow Congregational Church, Longmea dow, has preserved its charm and freshness for years with white lead STANDARD PHOTO SERVICE The St. Paulus Lu theran Church, San Francisco, Calif., now decor ated with pure white lead paint after unfortunate experience with another type of material lar churches in England. Built in 1768, it is regarded as one of the best examples of Colonial church architec ture. Its long history starts with Ste phen Williams, the celebrated boycaptive of the Indians, who later be came the first pastor of the church. Through the years this church has watched the nation's growth and for years to come its charm and historical significance will be preserved by the pure white lead paint protecting it. Once again, the importance of the priming coat is evident. One church has had its unfortunate experience. In the other, the Longmeadow church, from 1768 up to the present, all rec ords indicate that pure white lead and oil has been the only paint used on this structure. Assuming that it has been regularly painted throughout its life, the original white lead priming coat is still adhering to the wood. The excellent condition of the church to day after 170 years is testimony to the success inherent with a pure white lead paint program, regardless of location. Sheet Lead Forms an Economical and Efficient Fountain Waterproofing ROBABLY the largest lead-lined proofing job of a nature similar to P soda-fountain pit in the southwest that installed for the Grand Central was recently installed in a new storeTerminal branch of Liggett's Drug of Skillern & Son, Inc., one of the Stores in New York City (LEAD, July, country's biggest retail distributors of 1939). drugs and sundries. This is a water The Skillern installation comprises a pit 54 ft. 9 in. long and 7 ft. 6 in. wide, completely lined with 4-lb. sheet lead turned up around the edges to form a leakproof pan. All seams in the pan were lead burned. The lead was laid over old concrete which had been ground smooth with a terrazzo machine. The lead was coated with asphaltum to protect it against the free lime in green cement, and a new con crete floor poured on top of the lead. Duck boards are used on top of this concrete in the usual manner. The pan and floor are graded to the drains so that any moisture collecting under the concrete will drain from the pan. No matter whether a shower pan. a refrigerator pan, or the lining for an entire room, sheet lead makes a quick, neat, highly efficient and economical waterproofing. Flexibility of the sheet lead takes up any building movement or settlement and the pan fits snugly [6] *-*425634 against the underflooring; this elim inates the danger of void spaces under neath which may result in cracked flooring and leaks when the finished floor is laid and walked on. For waterproofing pans 4-lb., 6-lb.. or 8-lb. sheet lead should be used with seams preferably lead burned, al though they may be soldered if neces sary. Sheets may be as large as can be conveniently handled. Lead sleeves burned to the pan, or flashings, should be provided around pipes passing through the floor and pan to make these joints perfectly watertight. The installation for the Skillern Stores was made by the Spencer Plumbing Company, of Dallas, Texas. * Service Pipe.. .Today and 2000 Years Ago ance of the Lead Industries' Seal of Approval affords water-works en gineers lead service pipe in which the EADERS of `"LEAD"' and others the previously purported method of R who have visited the Lead Indus Roman manufacture. When molten tries Association exhibits at variouslead cools and solidifies, the change of unsurpassed durability, proved by even the crudely made Roman pipe, and other advantages of lead--flexi conventions have shown particular in state is always accompanied by the bility. non-clogging, non-staining, easv terest in the Association's samples of formation of crystals, each with a bends and smooth inner wall with less old Roman water pipe. Of special in main axis starting from the point resistance to flow--are combined to the terest has been the remarkable state of where the metal first cools and grow highest extent for maximum service at preservation of the old pipes, a testi ing out into the metal still in a molten a very economical long-term cost. monial to the exceptional durability state until stopped by of lead, since they were cut from water some obstruction, gen lines which had served for hundreds erally another crystal of years, despite the crude method of in process of formation. manufacture. Thus, the crystalline Now, still further evidence of this formation of the etched durability is furnished by samples at specimen shows that the the Museum of Bath, in Bath. En Roman method was to gland, reported by the director of Mel- cast the lead in flat lowes & Co., Ltd., in Sheffield. In sheets about J/j in. cluded in their relics are samples of thick, bending the flat great antiquity from cities like Bath, sheets into a triangular Exeter, Augst in Switzerland, and or D-shaped pipe and many others. fusing the joint by An original sample from Bath, in pouring more molten stalled about 76 A.D., has been exam lead upon it. ined metallographically and the pho Today, the develop tograph of the etched specimen is re produced here. The good condition of the pipe is clearly shown and a study ment of the extrusion process to its present high degree of efficiency Photograph of an etched specimen of ancient lead pipe at Bath. England of the crystalline structure confirms plus the quality assur ., Fire-Retardant Paint Relies on White Lead for Normal Qualities LTHOUGH no paint has yet been insulation is impractical or costly. Ak achievedwhichwillprovidefire- According to the Forest Products proof protection to inflammable surL aboratory, borax alone in combina faces under sustained heat of fire in tion with linseed oil does not provide tensity, recent experiments conducted the hiding power and adhesion neces under the auspices of the United States sary for an effective coating, so a high Department of Agriculture indicate percentage of white lead is added to that a formula composed of finely the mixture to increase its opacity and ground borax, white lead and raw- lin assure the durability of the paint. It seed oil assures the utmost in heat re must be emphasized, however, that sistance. The fire repellant properties even with the white lead present borax of this coating can well retard the paints do not have the great durability spread of small fires which otherwise of pure white lead and oil, and, for might assume dangerous proportions, this reason are not recommended for in many cases affording reasonable exterior application. There is a ten protection to surfaces where further dency also toward yellowing from the borax content which somewhat re stricts its decorative usefulness. How ever, when a paint with fire resistant qualities is desired, a pure white lead and borax paint is reported to be the most successful for all requirements. The heat resistant formula which has stood up best under the initial ex periments is composed of 41 per cent (by weight) white lead, 32 per cent borax, 22.8 per cent raw linseed oil. 3.6 per cent turpentine. .6 per cenl japan drier. The borax is first ground in linseed oil to a paste consistencv. and then white lead and oil mixed ac cording to regular formulas is added. [7] U^5635 MEMBERS OF THE LEAD INDUSTRIES ASSOCIATION ALPHA METAL & ROLLING MILLS. INC.. 363 Hudson Ave., Brooklyn. N. Y. THE AMERICAN METAL CO.. LTD., 61 Broadway. New York. N. Y. AMERICAN SMELTING 4 REFINING CO.. 120 Broadway. New York, N. Y. BAKER LEAD MFG. CO.. 28 Cherrv St.. Worcester. Mass. BUNKER HILL 4 SULLIVAN MINING & CONCENTRATING CO.. Kellogg Idaho CAMBRIDGE SMELTING CO.. 100 Pacific St.. Cambridge, Mass. CHIEF CONSOLIDATED MINING CO., Eureka. Uuh CROWN METAL CO.. 117-9 E. WVhington St.. Milwaukee. Wis. DAYROCK MINING CO.. Wallace. Idaho DICKSON WEATHERPROOF NAIL CO.. P.O. Box 334. Evanston. III. DIVISION LEAD CO.. 836 W. Kimie St.. Chicago. III. THE EACLE PICHER LEAD CO.. Temple Bar Bldg.. Cincinnati, Ohio THE ELECTRIC AUTO-LITE CO.. Toledo. Ohio EUSTON LEAD CO. (The Clidden Co.). 500 Penn Ave,. Scranton. Penna. EVANS LEAD COMPANY. Charleston. W. Va. FEDERAL MINING 4 SMELTING CO.. 120 Broadway. New York. N. Y. FEDERATED METALS DIVISION OF AMERICAN SMELTING 4 REFINING CO.. 120 Broadway. New York. N. Y. THE FLEMM LEAD CO.. INC.. Bradley Ave. & School St., Long Island City. N. Y. W. P. FULLER 4 CO.. 301 Mission St.. San Francisco. Cal. GARDINER METAL CO.. 4820 S. Campbell Ave.. Chicago. 111. GENERAL LEAD MANUFACTURING CO . 2132 Market St.. Denver. Colo. COLDSMITH BROS. SMELTING 4 REFINING CO.. 58 E. Washington St., Chicago, 111. HAMMOND LEAD PRODUCTS. INC.. First Trust Building. Hammond. Ind. HECLA MINING CO.. Wallace. Idaho HERCULES MINING CO.. Wallace. Idaho HUDSON SMELTING & REFINING CO., 85 95 Hyatt Ave.. Newark. N. J. IMPERIAL TYPE METAL CO., 3400 Arammeo Ave.. Philadelphia, Pa. INTERNATIONAL SMELTING & REF. CO. (Anaconda Sales Co.. Agents). 25 Broadway. New York. N. Y. THE JOHNSTON TIN FOIL & METAL CO., 6016 6120 S. Broadwav, St. Loui> Mo. KAHN BROTHERS. 785 Humboldt St.. Brooklyn. N. Y. KANSAS CITY SMELTING CO.. 2215-23 Guinotte St.. Kansas City. Mo. THE LEWIN METALS CORP., Monsanto Post Office, Ease St. Louis, 111. MARKS LISSBERGER & SON. INC., 23-01 Borden Ave., Long Gland Citv, N. y JOHN R. Mac GREGOR LEAD CO.. 4520 W. 15th St.. Chicago. 111. METALS REFINING CO. (The Clidden Co.), Hammon. Ind. NATIONAL LEAD CO.. Ill Broadway. New York. N. Y. NORTH AMERICAN SMELTING CO., INC.. Edgemont and Tioga St*.. Pinja. delphia. Pa. NORTHWEST LEAD CO.. 2700 16tb Ave. S. W.. Seattle. Wash. PARK UTAH CONSOLIDATED MINES CO., Continental Bank Bldg.. Salt Lake City. Utah RIVER SMELTING & REFINING CO.. 4195 Bradley Road. Cleveland. Ohio ROCHESTER LEAD WORKS, INC., 380 Exchange St.. Rochester, N. Y. ST. JOSEPH LEAD CO.. 250 Park Ave.. New York. N. Y. SHERMAN LEAD CO.. Wallace. Idaho THE SHERWIN-WILLIAMS CO.. 101 Prospect Ave., N. W.. Cleveland. Ohio SILVER KING COALITION MINES CO., 1010 Kearns Building. Salt Lake Citv. Utah SILVERSTEIN 4 PINSOF. INC., 1708-1720 Elston Ave.. Chicago. 111. STANDARD ROLLING MILLS. INC., 143 Jewell St., Brooklyn. N. Y. TAMARACK & CUSTER CONSOLIDATED MINING CO., Wallace. Idaho TINTIC STANDARD MINING CO.. Walker Bank Building. Salt Lake City, Utah UNITED AMERICAN METALS CORP.. 196 Diamond St.. Brookivn. N. Y. UNITED STATES SMELTING REFINING AND MINING CO., INC.. " William St., New York, N. Y. THE WENSLEY METAL PRODUCTS COMPANY. 1445 O.age St.. Denver. Colo. WHITE METAL ROLLING 4 STAMPING CORP., 80 Moultrie St.. Brooklyn. N. Y. WINCHESTER REPEATING ARMS CO., New Haven. Conn. The following articles and reprints contain information, drawings and specifications on the use of lead products helpful to architects, engineers and others in the construction industry. They are available, free of charge, upon request to the Lead Industries Association, 420 Lexington Avenue, New York City. WHAT TO EXPECT FROM WHITE LEAD PAINT An attractive 28-page booklet with charts, formulas, and mix ing instructions covering some of the problems of painting and how white lead meets these problems. PAINTING YOUR HOME by Dr, F. L. Browne, Senior Chemist, Forests Products Laboratory, Madison, Wise. A discussion of house painting reprinted from American For ests, May, 1939. SOME PAINTING PROBLEMS AND THE ANSWERS By Dr. F. L. Browne, Senior Chemist, Forests Prod ucts Laboratory, Madison, Wise. Reprinted from the National Real Estate Journal, Sept., 1939. PLUMBING CODES--AN ANALYSIS AND SURVEY-- Part II by Bob Dick This paper, delivered at the annual meeting of the American Society of Sanitary Engineering in Wilmington, Del., in August, 1940, constitutes the most complete and up to date study of plumbing codes available.* Everyone interested in plumbing codes should have a copy. LASTING LEADWORK IN MODERN PLUMBING By T. N. Thompson, Technical Editor, Plumbing and Heating Journal. Reprinted from Plumbing and Heating Journal, Feb., 1939. HOW LUMBER AND PAINT KEEP YOUR HOME ALWAYS IN STYLE STAMFORD'S DOUBLE LIFETIME HOME A complete analysis of hard lead flashing, white lead paint, lead plumbing, plywood and red cedar Certigrade shingle details and installation methods. Reprinted from the American Builder, July, 1939. SHEET LEAD INSTALLATION DETAILS A brief digest of the advantages of painted lumber homes with color-styling suggestions and other interesting information. LEAD CHIMNEY CAPS Notes on the installation and advantages of lead chimney-cap protection, reprinted from American Artisan, May, 1940. A detailed analysis of the principles and application of lead flashing and sheet lead work for small homes. Reprinted from Sheet Metal Worker, June, 1939. SHEET LEAD SHIELDING X-RAY ROOMS A discussion of X-ray protection and installation methods re printed from Sheet Metal Worker. NEW SIMPLIFIED STANDARD FOR LEAD TRAPS AND BENDS File size leaflet with new standards for lead traps and bends as well as existing standards for lead pipe and calking lead, and other informative data. * Not previously listed. UPON REQUEST, THE LEAD INDUSTRIES ASSOCIATION WILL BE GLAD TO MAIL "LEAD" REGULARLY, FREE OF CHARGE. TO THOSE INTERESTED, AND WILL COOPERATE WITHOUT OBLIGATION, IN THE SOLUTION OF YOUR LEAD PROBLEMS 155 MINTED IN U. S. A. Y PUBLISHERS PRINTING COMPANY NEW YORK CITY LlA25fc3fc