Document dDDwD48N9JGbRy6veVpdYj2Q0

FILE NAME: General Electric (GE) DATE: 1935 Jan 22 DOC#: GE193 DOCUMENT DESCRIPTION: Letter to Raybestos Manhattan from Vandiver Brown with Summary & Attendee List from Symposium on Dust Problems Jo h n s -M a n v ille Tw e n t y -Two Ea s t Fo r t ie t h S t r e e t ; N e w Y o r k .N.Y. January 22, 1935 Mr. M. F. Judd, Secretary, Raybestos-Manhattan, Inc., Bridgeport, Conn. Re: Mellon Institute of Industrial Research ______ Symposium on Dust Problems Dear Mr. Judd: . As I indicated to you over the telephone this afternoon, I am enclosing a copy of a memorandum I prepared for Mr. Lewis H. Brown regarding my trip to Pittsburgh last Tuesday, January 15th, to attend the Symposium on Dust Problems held under the auspices of the Mellon Institute of Industrial Research. VfiTV Frill v v n n r a VB: T Enclosure JAN 3 0 1935 Vandiver Brown Attorney J-iinOR/uJDGli Tili- UCLLQl,l INSTITUTE 0? INDUSTRIAL lU-SLAHCn SIliPOGIULl ON DUST PEQ3L S I 3 - PITTSBlThOH- .t mi Of Industrial Research eddrc^'-cd g l , " * * . * * " V " _______ h avin g in d u s t r ia l d ise a se p ro b l^ a s i ^ t i TM fu?n 11 3 "^2 W i ? K o ? k c i& ? f ^ -.tih irsu u S 0 ^ n s ! s r a M s ? to t ttnh.. rwmrcit-err or t%h?i3f maenmroirlalnduTMm.3 rAeupnrreosxeinrtaef-dniavt ?ktdoio meetin^g buy/ p re se n t r c p c s o n t in - over 50 S f >7v,2i people vvcre in v it a t io n of the Mellon I n ^ i t S t ? ~ Y had- a cc?ifjted the g r e a t ly s u rp ris e d a t tho re n srfc a b li rio o o n se 1^ 1? ? ^ ^ WS o p in io n th a t one cannot fin d a b e t t e r io d ic a M n n nr i L " y , S i s ^ S s s f ^ Prb U 'aS U wao th p u r p o ^ c i l h o G o t t i ' S 10" had boon p r o U S * g S T E f e # & 2 2 Z 2 J Z ? ? Mlvf: tatives J of n'iSlBS? these in I*"3 dust tbs ries rofraoto?ies conferred wi tlhixlGSrstivTolr! Ferae",or- o frih o ? i S b ie a Ino" i t 0'iS n<i a fte r sd v is^ 'h ia o f the L tS ra ^ ^ S S ^ ^ S s s th `de itS it ? fbceS l f ^ f tlth in * , nsroc^to^cooperate to op=-nd X L m b & 2 ;," S 'p S 2 t 5 , ^ wth?P^ S r tai i ve* * " *" P h o lla iu a ry d i s c u s s i o n a s t o ? h e p o s s l b u i w ' u, I ^ r8 l-U eir o h SoSnSi - i ^ i ? / ' n r atiCl':a r ih'? houso fo r In fo ra a tio n and ht,1 ^ poa a "Pects of the problem common to all industries o f t tiicf u S o t ij^ aMlt!30ntS V,rGr0 postponod u n til a fter the holding An impressive list of experts spocialicin'r unnn various aspects of the dust problem attended the meeting and h*- -2- delivered addresses. Among those were Lr. A. C. Birth a a300ciated with Yfillloras, Eversman and Morgan. Toledo Ohio, attorneys .for^imns-Illlnois. Glass Company: Dr E u i e TM p 0f ~ ^ 0 ?"ray laboratory, University Hospital^ PhilaA3sistant Medical Director of the Insurance Company: Dr. R. R. Savers Uedieai Siii?eri1\ Ciar8e of u: s- Public Health S w r t c e ^ o f e s s P h U ^ p ^ J i r l n t e r of the School of Public Health, Harvard (Jnlversity; ^rT^F. Robertson Jone3, General Manager, Association of Casualty and Surety Executivesj and Ur. Donald E. Cunnings Assistant Director, Saranac Laboratory for Study of Tuberculosis. The addresses delivered by these specialists, together I'if the Pen discussion that followed then, revealed, among8 tiier thinss, the very menacing character of the Jroblca. U s complex ^ i U thV nCGrtiintie3 attondine a0i3t of its aspects a n d ^ e necessity of son form of united action by the afflicted Industrie: It was recognised that soae aspects of the problem vrere peculiar to special industries but It was equally evident that other aspects were common to all. For example, o n l v t - o forms of dust, namely, free silica and asbestos, are definitely knorm to produce disabling fibrosis of the lung! Even in the S?? x ^h6S0 du3ts the problems resulting therefrom are ouite difx erent since tne fibrosis resulting from silica is of a much ?hoG pf2riUS c]?fracter than that resulting from asbestos in that the f -user predisposes to tuberculosis and is much more likely to ha7G a fatal termination, On the other hand (and this illustrates one of the most serious aspects of the problem that is c o r J w t o all dust producing industries) the fact that no other dust i3 t0 pr0fiu<r? disability lias not prevented entirely groundless claims aggregating millions and even hundreds of millions of b?in? brol^ hfc g a i n s t industries which have no S i l i L or So Sni5,<}U8t hasafd ; ,For exaaP10 Laasa pointed out' t S t n e v e ? t h J ? i ^ Ve?hHiaintalne? thQt 5ypsun dust was harmful and yet, ne/ertheiess, the gypsum industry had suits pending against it covering claims in excess of four million dollars. Z Industries i o ^ h e ^ o U o S n g f 10" th p r o W e n 3 00a=>0" *> all (l) The menace of ambulance chasing lawyers in combination with unscrupulous doctors. The uncertainties surrounding diagnosis of any of the various forms of pneumonoconiosis are so many that a question of fact is presented In every case. Expert testimony can be pro duced by both plaintiff and defendant and it is for the Jury to decide whose experts are coirect in their interpretations. In making this decision, the jury is not likely to favor the opinion of the experts produced by the employer. (2) The desirability of making various dust diseases compensable under properly drawn workmen's compensation laws. One of the speakers stated that "the strongest bulwark against future disaster for industry is the enactment of properly drawn occupational disease legislation". Such legislation would (a) eliminate the jury and empower a Medical Board to pass upon the existence of the disease and the extent of the disability; (b) eliminate the shyster lawyer and the quack doctor since fee3 would- be strictly limited by the law; and (c) permit the correct ing of initial mistakes in the making of awards by providing for hearings to reduce or eliminate awards if proof could be adduced that the claimant was not disabled or that the extent of his disability had been over estimated. (3) Problems of ventilation, dust collecting and elimination, and respiratory devices* (4) The establishing of standards (a) for dust counting and particle size determination, (b; for the taking of X-rays for diagnostic U3e, and (c) for the interpretation of the markings on the films so produced. At the close of the discussion a Mr. Kurts, Vice President of American Refractories Corporation, made a motion that Mr. William P. Yant, Chairman of the meeting appoint a nominating committee who would nominate a group of individuals to servo a3 a committee for the formulation of ways and means to brinfc about effective cooperation of some character between the various industries for meeting and combating those phases of the dust problem common to all. This motion was carried and a Nominating Committee appointed which retired and upon returning presented to the meeting the names of seven individuals to act as such Committee. No other names having been placed in nomination, the following were elected to act as the Committee and report bacx to the various industries and groups represented at the meeting or to whom the invitation had boon originally extended: -4- Vandiver 3rown representing Asbestos, Cork and Non-Uetallic Dr* B. D* Saklatwalla representing Chemical, Abrasives, Alloys and Hon-ferrous metals E. 0. Jones representing Foundries A# Y?. Sherwood representing Glass Sand, Ground Sand and Gloss Uanufacture A. J. Gentholts representing Iron, Gteel and Ores A. J. R. Curtis representing Lime, Limestone, Cement and 'Gypsum Roger A. Hitchlns representing Refractories,Ceramics and Cla$3 I explsinad to the other members of the Committee that I had been sent to the meeting solely as an observer and had no authority from Johns-Manville Corporation to accept membership on the Committee and certainly none from the Asbestos Industry as a whole. I was urged, however, to meet r/ith the Committee and agreed to do so on the condition that I might withdraw if approval of ray serving in that capacity should not be forthcoming. I pointed out that members of the Asbestos Industry did not care to be associated in the minds of the public or of employees with those industries whose problem was silicosis and that for this reason I felt there night be some opposition to having- a representative of the Asbestos Industry working with them. I did indicate, however, that I realized numerous aspects of our problem were the same and that if cooperation could be worked cut without an undue amount of publicity, Johns-Munville Corporation and perhaps the Asbestos Industry ha a whole, would in all likelihood be willing to cooperate. It was the opinion of the Committee that this condition would not present any insuperable difficulty* Mr. Roger Hitchlns, President of American Refractor ies Institute, was made Chairman of the Committee which held a mooting Tuesday evening after the close of the Symposium. Ur. Hitchlns was designated to meet with Hr. V/eidlein of the Mellon Institute and ask him to make a proposal in definite and concrete fora as to ihe manner in which tho Mellon Institute might bo able to assist the- various industries for a fee of ?25,000. When tills proposal has been received and approved by the members of the Committee, it will be submitted to '.lie various industries with tho recommendation that it be accepted and that the v rious industries or individual corporations agree to stand good fur a proportionate amount of the fee not in excess of a definite specified sou. -5- I gathered that the proposal which would bo node by the Mellon Institute would includo, among others, the follow logi e r The compiling of a comprehensive bibliography of all book3, treatises and publications deal ing with any aspect of the dust problem: and the evaluation thereof. (b) Tho compiling, digesting and correlating of data and information from various subscribing industries relative to their particular experi ences. (c) The drafting of approved workmen's compensation legislation covering pneumonoconiosis. (d) The digesting of the laws of the various states which might affect the operations of industries presenting a dust hazard. (e) The outlining of problems requiring research or the establishment of fixed standards and the prevention of duplication of effort and expense along these linos. J.^The interc3b w ith which the discussions were followed and tne enthusiasm which greeted the proposal for unified effort lead me to believe that the necessary support will be found for some sort of program along the above lines. YANDIVEP. BROWN January 18, 1935 *n ///- EaogflffontatlVBS-ut sillco3l8 Moeiln Aigeltinger, Arthur, Southern "hel Company, '' 230 Park Avenue, New York, IJ. Y,, Barrett, L. P., Jones & LaughLin Steel Company, 201 J. & L. Building, Pittsburgh, Pa. Allen, C. M., Staff Supervisor, Safety & Training, The American helling Bill Company, Middletown, Ohio. Bartholomew, Tracy, duquesno Slag Company, diamond Bank Building, Pittsburgh, Pa. Allen, U. 0., Beal, Geo. D., Ass't. director, Personnel Director, Mollon Instituto, Simondo Saw and Steel Company, Pittsburgh, Pa. Lockport, N, Y. Bonnott, R, H., Aines, W. F., The Boldon Brick Company, Manager of Compensation, Canton, Ohio. Bethlehem Steel Company, Inc., Bethlehem, P* Berg, Dr. Chas. F., (United ngineoring & Foundry) Anderson, M. M., Aluminum Company of America, 858 Lockhart Street, K.S., Pittsburgh, Pa. Gulf Building, Pittsburgh, Pa. Atwood, F. II., Beyer, R. A,, Central Tubo Company, Ambridgo, Pa. Harbieon-Walkor Kefractones Co., Parmors Bunk Building, Bidwell, R. ., Presidont, Pittsburgh, Pa. Abingdon Sanitary Mfg. Co., Abingdon, 111. Avey, don M., (American Foundrymon's Assoc.) Ponton Publishing Company, Blank, E. F., Jones & Laughlin Stool Company, Cleveland, Ohio, 511 Ross Street, Pittsburgh, Pa. ayers, E. M., President, Ayers Mineral Company, Zanosvillo, Ohio. Blommers, P., II. II, luahortson Company, P.000 Grant Bldg,, Banker, E. 0., Gen. Supt., Pittsburgh, Pa. Punna. Glass Sand Corporation, Huntingdon, Pa. .......... . . . .(Bolo, Ralph 0, .... .......... ,,,.^Enginaering'Dopartmont. Barui-W* .' C l a Olaea Company, Youngstown Shc't i Tubs fco.,' Yourigtovrtj Ohio."" '" 'r'".. fa** Buliaihg . * , ij. . f4 -P- ' hovard, Dr, Paul G., rtlloghony Steel Company, Israckonridgb, Fa. Bi'andt, A. D,, Wiiloon Products, Inc,, .loading, Pa. Brown, Martin, United Zinc Smelting Corporation) jundsvillo, V7. Va. Brown, Vandiver, J.-dins-Manvillo Corporation, :l. Ea3t 40th Street, Now York, N. Y. Burke, J. E,, President, National Ready Mixed Concreto assoc., J. K . Davison S: R r o ., 4End & Davison Streats, Pittsburgh, Pa. Campbell, C. U., .toppers Company, .vippors Building, Pittsburgh, Pa. Campbell, &. J., Vice Pres., Sun Sand Company, Tnayor, Vi, Va. Campboll, Join, 'agio Pichor Load Company, Joplin, Mo. (Box 573) cannon, C. F., President, National Silica Works, Eerkol&oy Springs, V. Va. Cu i t , J. 0., llughcny Stool Company, lirackenridgo, Pa. Chivors, Or. J. H., Modical Oupt., Corwith Plant, Crone Company, . . ,r Chicntfoi 111* ' * , Chormahn, 0* *, Tlio PfaudloT* Company, Rochester, 8* ' ' ' x V'- * *<ft v* I t . Claro, U. Lien, ,, Podoral Suabourd Terra Cotta ^orp., Yioodbridgo, N. J. Collord, George L., Tho Shonango Furnace 0 ,/np.ny, 812 Olivor Building, Pittsburgh, Pa. Couchman, A. R., (Crushed Stone, Sand & Crave! & Slag Industrios) 1004 Baltimore Trust Bldg., Baltimore, Md. Crotchor, L. H., tss't. Direct.,!, Mellon Institute, Pittsburgh, Pa. Crow, J. A., Ayera Minoral Company, Zanesville, Ohio. Cronin, \im. J., Secretary, Maaufac turor1s Committee, Automobile Manufacturers Association General Motors Building, Oatruit, Mich. Cummings, Donald i> Saranac Laboratory for the Study of Tuberculosis, Kdraard L. Trudeau Foundation, Ironwood, Mich. Curtis, A. J* R Portland Comont association, 53 Yiest Grand Avenue, Chicago, 111* Davidson, 1/. W., Parsnnnol Dtroctor Tho Bnbcock & Wilcox Tube Co., Bayonne, N. J . ; Oovios, J. 0., . Mine Safety Appliancos Company, - . Braddoc)c, Thomas & Meado Strootu, Effigi*Pittsburgh, 'Pa. Y.-*, 'Thd Calrisihg Companyt .,,00 H 1 U AvuhUo, -^ttilkinBbUi'#* l`Q* ^c+v. Jf '4* bavlaon, E. K., I. K. Davison Sc Bro., iVnd & Oavifion Strait a, Pittsburgh, Pn. -5- m is, e . k., Director of Safoty & Violfare, thuoling Stool Corporation, Wheeling, W. Va. Dickey, C. Vi., Manager, loraponsation Division, Service Dopt., a . 1. du Pont da Hemours & Coi' Inc,, iilmington, Del. Engel, Dr. 1. C., Welfare Director, Tho Corrigan, McKinney 3tu._l C c ., Cleveland, Ohio. oodgo, J. S., Insurance dunagor, Pittsburgh Plate Class Compnny, G.vmt Building, Plttaourgh, Pn. Jonoghuo, Thos. ti., Safety Engineer, Pittsburgh Plato Glass Co., ureighton, Pa. borfan, M. 1, oust Collecting Division, El aw-Knox Company, Pittsburgh, Pa. orirucor, Dr. C. K., 55 Shattuck Street, Bouton, Mass. l rinker, Dr. Philip, iiarvord School of Public Ho.uLth, 55 Vtm Dyke Street, boston, Mass. LuDoio, U. B., Consolidated Feldspar Company, P. 0. Box BCD, Dust Liverpool, Ohio. ounbur, F. B., Pickond3, Mather & Company, Cleveland, Ohio. Durham, Guorge T., Cleveland Cliffs Iron Company, Union Trust Building). Cleveland) Ohhiioo . ; ; _ _ . Film er, U. T ., Youngstown Shout & Tube Cei-.p .ny, YoungstovTii, Ohio. F lin t, ? . C ,, liazul A tla s G lass Company, Washington, Pa. Fox'd, K a rl L . , Glass Containor Association, 19 boat 44th S t r e e t, New York, N. Y. Franzhoim, C . M ., Consolidated Foldspar Corporation, P. 0. Box 205, Whooling, U. Va. Erary, Dr. F. C ., Hoanorch Laboratory, Aluminum Company o f America, Now Kensington, P a. Funston, S . K ., Attopulgus C lay Company, 260 South Broad S tro u t, Philadelphia, Pa. Gohman, Dr. G. H ., Modical D iroctor, Sorvico D ept., I . du Pont da honours & C ..., In c. , Wilmington, Dul. Gontholts, A. J., Ass't. Gon. Attorney, depuhlic Stool Corporation, _ <Ju Bopulilio^ Building, '* ,.^SfoffilHoiiS) Ohio; *-' SoutHerti Vrtwol Ooriphijji'i.. ''' iP.ubOw PYoerrkk,Avtlo.hYd.) ....................... .................................................................. "* -* .*.#* ,r - f '** sJr1 Cork Commjpany, 'r4Wa ' - W-\fj-vU`=,'^_S_B_a.>v Gibson, A. C,, ' Spang, Chalfant & Company. Inc.. Etna, Pa. f ' r.'T*-''*<'''* Hasard, W. G., Owens-Illinois Glass Company Tolodo, Ohio. Glaco, Or. S, J.t Jr., Company Surgeon, American Sheet & Tin Plata Co., Fricn Building, Pittsburgh, Pn. _ Grau, Karl, The Babcock Sc Wilcox Tuba Co., 17th Street & 21st Avonuo, Beavor Falla, Pa. Groono, F. L., - - . General hefractorlos Company, Clnysburg, Pa. Heilman, Dr. U. H., Allogheny stool Company, Brackcnridgo, Pa. " Honsol, H. G., Safety Director, Foungstonn Shoot & Tube Company, 2111 Conwjy Building, Foungotown, Ohio. Horr, H. T., Jr., J. S. McCormick Company, 2Sth and A. V. R, R,, Pittsburgh, Pa. hall, A. R. " - Herron, Dr. Tbos. B.,"* , Hill Doctor, Hasel-Atlas Glass Company,1 -Pittsburgh Steal Company, Wheeling, W. Va. Hall, J. T., Honessen, Pa. f Hall China Co., haro, H. R., \East Liverpool. Ohio. Hirth, A. C., Safety & Welfare DirEttoP, ~ Hill lams,' Evarsman & Morgan, ketveesport Tin Plato Cccipanyj " ---- - goanj Qp Trade Building, Mcosport, Pa. Tolodo, Ohio. -.-.j - Harrington, Dr. F. B., Chiof Surgoon, . - hairton Stool Company, heirton, W. Vn. ' ' Harvey, Dr. A. M., y Crane Company, ' Chicago, 111. ' ... *Hitchins, Roger A., President, r'r- American Refractories Institute, r*.*' 1G08 Sfolnut Street, ~ Philadelphia, Pa. : * - V; ` nodes, Dr. Philip, .J.'. *. ' ~ "" ' University Hospital, Philadelphia, Pa. . Harvoy, 0. F., " ' American Car & Foundry Company, ' 50 church Street,' ' ` Hew Fork, N. X. ' Hatch, J. W., . Abingdon Sanitary Mfg. Co., Abingdon, 111. Hay, uusboI G., Ayers Mineral Company, Zanesville, Ohio. IKythom, Dr. Samuel R,, Singer Memorial Laboratory, Allogheny General Hocpital, Pittsburgh, Pa. Holbrook, E. A., '* - School of Mines, University of Pittsburgh, " "Pittsburgh, Pa. ~ A, . -V- -Hoyt, C. E., " ' American Foundrymcn* a Association, 222 Host Adana Strcot, Chicago, 111. Huggins, G. L., Gonoral Electric Company, 818 Fulton Building, Pittsburgh, Pn. Huth, Gordon C., Manager, Bureau of Safoty and casualty, Universal Atlas Comunt Company, 208 8. LnSallo 8trosh, Ohicago, 111. - S 3^ uTi*-/ t JohnBon, Goorgo W., Excelsior Supply Conpnny, 34th Street and A. V, 11. R,, Pittsburgh, Pa. ' = --- Kress, P, J., Prooident i F, J. Kroso Box Company) " 1- ?.8th Street, Pittsburgh, Pft. Johnston, Dr. Join, U. S. Steel Corporation, 71 Broadway, Hew fork," H. Y. Jones, E. 0., llxtional Founders Association, ilD South LoSallo Streot, Chicago, 111* Kuschle, Benjamin, Employers Mutual Inauranc-j C-,., Wausau, Wis. Kurtz, Xhoa. H., Worth Amorioaa Refractories 0-:., Oliver Building, Pittsburgh, Pa. Jones, F. Robertson,- Assoc, of Casualty & Surety Executives, 1 Park avenue, Nuvr York, M, I. . Assistant Medical Jiructor, Metropolitan Life Insurance Co., 1 Madison avanuo, Now York, II. X. Jones, Dr. R. R., Medical Director, Luitzol, F. 0., Blaw-Knox Company, Boll Telephone Company, Pittsburgh, Pa. 416 Seventh Av.arue, Pittsburgh, la. Lescnllotto, R. F., Armstrong Cork Company, Junkin, Hays M., Beaver Falls, Pa. Knex, Strouas & Bragdon, 1725 Juniata Street, N.S., Pittsburgh, Pa. Lindsay, Harry B., Sec.-Troas., Grinding Vihcol Manufacturers ..ssoc. 27 Elm Street, Kahl, J. C., Manager, ' Worcester, Mass. United Engineering St Foundry Co., Vondergrift, Pa. - ..'Logan, A. E., Mgr., : Safety & Welfare Dapartmont, Keller, J. U., Manager of Foundries, American Car & Foundry Company, American Sheet and Tin Plato Co., Frick Building, Pittsburgh, Pa. 1558 South Vanduvontor Avenue, St. Louis, Ilo. Lohrnan, H. V/., United Zinc Smelting Corporation, Kelly, Dr. J. C.f Moundavillo, W. Vi. (MeKeosport Tin Plata Company) 219 Sixth Avenue, McKoc3port, Pa. Loxterman, H. B., Blnvr-Knox Company, ..Pittsburgh, Pa. Kennedy, Dr. P. H., Youngstown Sheet & Tube Company, Youngstown, Ohio* ' ' Lutton, C. L., Safety Director, Frick Coke Company, .. Building Annex, Keplinger.' v'<|?f e ^ : ^ . ! ^ ^ ^ ^ P U t s b u r g f c Pa r -.' M e f c r o p o l i W p a ^ ' ^ k 0*! - . Cnhton, Ohio* V ,, n. Koith* PraB<, Sanitary W?g. Co., CaStlo, Pi. ^ v' _ McAm,_D. G., Works Mgr., ". Allia-Chalmors Manufacturing Co., N.S., Pittsburgh, Pa. kuns-Illinoi Morfoot,'F. G., 0 8 Glass Company, Toledo, Ohio. cv _ j McCoimoughy, Dr. J. B., Aluminum Corapany of America, Hew Kensington, Pa. McCord, Ur. Carey P., ' Industrial Health Conservancy Lab., Cincinnati, Ohio. ' McCullough, Ur. J. F., 501 Jenkins Arcade, - Murphy, halter B., Director of Plant Personnel, Atlantic Rofining Company, 5144 Passyunk Avenuo, Philadelphia, Pa. Nichols, K. H., Tho Floridin Company, Harren, Pa. Pittsburgh, Pa, MeKibben, A. H., ' ..... Macbeth-Evans Class Company, Charleroi, Pa. ." ' . ^Osmond, Dr. L. H., 501 Jonkins Arcodo, Pittsburgh/ Pa. ;? w V r f f Maclachlan, Ur. Ti. T7. G., Medical arts Building, ' Pittsburgh, Pa. ; . -j ^ V-r' ' Manor, J7II./Vice President, "" Consolidated Feldspar Company, . East Liverpool,. Ohio. ~ ^ " PoBforsxasaS Ur. Eugene P., Univorsity Hospital, Philadelphia, Pa. Potera, Ur.. S. ., (Mine Doctor, Pgh. Steel) Mnsontnrn, Pa. Marshall/ J . C . - Union Carbide Company, Niagara. Falls, N. Y. Pierce," H.L., The U. A. Banna Company, Cleveland, Ohio. Mather, S. L.,' Vice President, Cleveland Cliffs Iron Company;. . ' Union Trust"Building, T' ~ : ' Cleveland,. Ohio;. Pierce, R. M., ino Safety Appliances Comp.tny, ' Braddock, Thomas & Meade Streets, Pittsburgh, Pa. ' Matthews, T. C., Pennsylvania Pulverising Company$ ~ ' Lewiston, Pa* - - v // Pitt, hillinm J., UoVilbiss C ompany, Toledo, Ohio. ' Mawhinnay, Ur. Nori, ` Mercy Hospital, Pittsburgh, Pa. ' ' Poistor, R* S., Vico Pres, in Chargo of Operations, Alan hood Stool Company, Conshohockon, Pa. ... . :i 1 A < ' *'? Melter, Ur. E. G., Uireotor, Industrial Hygiene Laboratory, Employers Mutual Liability Insuronca Company of ffiaconsin, 800 Empire Building, Milwaukee, his. Mwller, H. B.. Chief. Bureau of Smoke Regulation. Department of Public Hoaltn, Pittsburgh, Pa Poth, J. J., Jr., American Radiator Company, 40 Rost 40th Stroot, Now York, N Y. Powell, A. R., hoppers Rosearch Corporation, hoppers Building, Plttaburgh, Pa. .v.ft&Jj f w .-;--*iw S3 Prescott, W. Ii,, Jr., Pickands, Hathor & Company, Cleveland, Ohio. Price, Charles M., Scott, MacLoish b Falk, 134 South LaSalle Street, Chicago, 111. Putnam, John F., National Silica Company, dragon, 111. 'Sayori, Dr. R. R., D. S. Public Health Service, Washington, D. C, Schultz, H. A., 0. S. Stool Corporation, 71 Broadway, How York, N. Y. Schwaim, Henry J., Secretary, Gypsum Asa jciati-in, 211 West Hacker Drive, Chicago, 111. Racine, C,, W. ' . Sherwood, A. W., Vice Pros., 2na National Bank Bldg., Owens-Illinois Glass Company, , Toiodo, Ohio. Toledo, Ohio. ........ * .i , * *.. r- Randall, Clarence B., Vice Pres., -p- Inland Steel Comply, , 1st national Bank Bldg., - ; ; ; .^ KatioiudFiroproofing Corporation, ^ JSton Buildifer. ` " ` ^'Pittsburgh, Pa. The Hanna Building, ' Cleveland, Ohio^ _ Riddell,'J. Murray,0' Manager of Mines,"-- . -<K- VX^WSigaon, L. B.,. '"5 ^ ' Mellon Institute,; . '\ '..V, Irk. -'-'Pittsburgh, Pa. The Corrigan, McKinney Stool Co.,; ... .....stoffo, Paul R., Cleveland, Ohio. . -- ' - B06&1 w* A#| pickands, Mather & Company, Cleveland, Ohio. _ _ L -'T'-Jt. & G. Taylor Company, -'^Cumberland, Ud. . - Taber,' R. S., _ .^ ^ Titanium Alloy Mfg. Co., Rousseau, A.,' - - - Grinding Hhaul Manufacturers Assoc;* Horton Company*" ' liiagara Falls, II. Y. Tannur, P. S** United Engineering & Foundry Cc., Viorcestor, Mass. Vandorgrift, Pa. Rupert, F. P.* ' Mellon Institute*. . .. Pittsburgh, Pa. " `Thac'iU^'^fi^ AbsH . Gen* Ugr., Intorlnke* Itori Corporation, 552 8V Michigan'Avonuo -- aiSii ,f'-' : * >.4 ' Thomas, Wm. E, Babcock & Wilcox Tuba Company, Beaver Falla, Pa. Weeks, H. J., Manager, Employment, Safety & welfare uopnrt.T.e American Steol it Wi.ru Company, Thornton, George, Vice Pres., Ottawa Silica Company, Ottawa, 111. Rockefeller Building, Cleveland, Ohio. ioidlcin, E. R., Director, Tillotson, E. W., Ass't. Director, Mellon Institute, Mellon Institute, Pittsburgh, Pa. Pittsburgh, Pa. Wail, Dr. G. C ,, Titu3, W. C., Parsonnol Director, 1 ' Allegheny Steel Company, r Morey Hospital, Pittsburgh, Pa. Brackenridgoi Pa. "- 1 Tour, Sam; Exec; Sec., " -s.- ` ' " . r ~. Williams, Marshall, 4 American Bridge ^Company, Frick Building^ Hon-Ferrous Foundry Association.forT/. ..Pittsburgh, Pa. , Industrial Recovery, ' * -- ;' 47 Fulton Stre e t e r : . Mew.York,' S / Y ^ W / '' " Williamson, George H., j. K. Davison & BrbT? * si Valentin/Dr. A. C.,r y. v-.-' * Davison Streets, -.- Pittsburgh, PaT ' Works Mgr., -- < - -~TA- Cady Company, Van Hagan/ H; H., ' : F ^ W i~Rtnding, Pa/ - "t inrwtion. *--- 1 -. W U.- J.` Pulverizing Company, . L: Veagy, S. C,, -. - ^ :-v - , W. W. Sly Manufacturing Company,'" _ ' Woody, G. V., Uanogor, "'4. Cleveland/ Ohio. ~ ~ P i t t s b u r g h District, ' . ` AlliS^Chalmora Mfgr Company, Voss, J. A., . " ` "J-v" ; Koppofs Building, ' Director, of Industrial Relations, - - * Pittsburgh, P-a. .Republic Steel.Corporation^ " '` * "`V ' M *- v*--n *Republic Building, *' ^ ' \- Youngstown, .Ohio. ' * *#>.' ..* ..'p'* . . Wychgol, Dr. Jamas H., Amurlcon Stoel & Y/iro Company, R.^ckefallor Building, Waters; T. C;* - Pennsylvania Pulverizing Company, Cleveland, Ohio; Lowiston, Pa. Watson, A 1., Koppars Company, Yanson, C* R*, Secretary, Code Authority, Sandstone Industry, H R S Builders Exchange Building, Cleveland, Ohio. hoppers Building, Pittsburgh* Pa* Wsbbr, G*.j.* . . .- . : AsSoc. of Mfra*of Chillod Car Wheels, 1847 McCormick Biiilding, " .... " Yaht, William P.j Bureau of Mined, 4800 Forbed' Street* Pittsburgh* Pni Yoder* Ray . a, . Standard St'uol Works Company, BUrnham, Uifiliti Co., Pa.