It is obvious that a cell change which leads to malig nancy must be one which 3 compatible not only with survival but also with independence, enhanced power to multiply, resistance to normal inhibitions of growth and competitive superiority over normal cells.

FILE NAME State of the Art Literature SAL DATE 1953 Nov DOC SAL057 DOCUMENT DESCRIPTION Journal Article - Asbestosis and Bronchogenic Carcinoma at pinay Paced : Ta z C2oe at "td Peat Re A san.

(Phyllis M) slsmn .h 72 > Genevieve la Dutch Boy Paint Store (National -Lead Co) 92 N Market DUTCH BOV PAtNTS, San Jose Paint & Wall Paper Co Dealers, 112 S 2d, Tel Cypress 2-1447 M Mill Creamery (Mrs Angelina Sarager) 183 E San Fernando Dutcber Owen J (Julia T) hl424 Douglas Duthie Andrew J h59 S 8th " Mary E h313 S 10th Dutra Alberta P lab rl68 N Bascom av M Ernest G (Josephine A) driver Broehers Bros h301.S 22d " Frank (Mary S) hl9Q0 Kammerer av M.

JOURNAL OF THE MINE VENTILATION SOCIETY OF SOUTH AFRICA Published monthly by the Mine Ventilation Society of South Africa.

In the Paint Division routine check examinations are made of employees exposed to lead and other toxic or poisonous materials.

FILE NAME: Metropolitan Life (ML) DATE: 1952 DOC#: ML076 DOCUMENT DESCRIPTION: Bulletin - Diamotaceous Earth Pneumoconiosis & CA Dept of Public Health Report - Several Cover Letters Attached 33"0*_* i a P 8 -I Ip 0 s *& y> :4 February 20, 1952 Dr.

Leading physicians from New York and 'he surrounding area are participating and covering both the general and the specific specialty problems that arise in compensation medicine.

Dir-ctor of Health and Safety Lead Industries Association 420 Lexington Ave.

Dlr-ctor of Health and Safety Lead Industries Aesociation 420 Lerington Ave.

FILE NAME: Oil Industry and American Petroleum Institute (API) DATE: 1951 DOC#: API062 DOCUMENT DESCRIPTION: Unpublished - Report of Progress in the Appraisal of the Potential Carcinogenic Properties of American Petroleum Products February l, 1953 LIBRARY AMERICAN PETROLEUM INSTITUTF Mr.

Again, a limited exposure for only a few months to a known chemical hazard, such as vinyl chloride, may lead many years later to the appear ance of angiosarcoma of the liver.22 Nonneoplastic cel lular and tissue changes are seen during the apparent latent period.

s| il il a \ [i h v I'o t i i k i K Ai. c \ k t i \ ( it .1 \N r ...., r I \ |)i im ire v m ,i phy- y investiga. | i mm l i ny t ' m-i leads ;:!

A Retrospective Cohort Study of Disability Among Chemists Shelia K.

FILE NAME: Kent (KNT) DATE: 1953 Sept 12 DOC#: KNT129 DOCUMENT DESCRIPTION: Journal Article - Bronchial Carcinoma - British Medical Journal Sept. 12, 1953 BRONCHIAL CARCINOMA British M edical Journal 585 BRONCHIAL CARCINOMA: INCIDENCE AND AETIOLOGY* BY RICHARD DOLL, M.D., M.R.C.P.

The main occupational expo sures occur in workers who are engaged in smelting and refining copper, gold, and lead ores; in producing agri cultural pesticides; in using arsenic as pigments and dyes; and in manufacturing glass, semiconductors, and various pharmaceutical substances from which there may be high exposure to airborne arsenic.1 The most extensive human exposure to inorganic arsenic, however, results from naturally occurring inorganic arsenic in drinking water, long known to be a cause of skin cancer.