380 The resulting figure represents the diameter of uniform spherical particles which, for a similar weight of dust, samples have verv closely the same equivalent surface area as the original particles.

418 The Industrial Chemist, November, 1939 Air-Borne Matter, Part II Characteristics and Industrial Implications By Henry L.

180 OCCUPATIONAL TUMORS AND ALLIED DISEASES susceptibility of the individual animal; (8) the general health of the indi vidual; (9) the degree of natural oiliness of the skin; (10) hygienic and nutritional conditions; (//) perhaps the season of the year covered by the tumor-bearing period; and, (12) acquired resistance, immunity, and hyper sensitivity.

LAVEHACK HAINES, lac.

tabbies 1934 TRANSACTIONS National Safety Council Incorporated TWENTY-THIRD ANNUAL SAFETY CONGRESS Cleveland, Ohio October l to October 5, 1934 The Cleveland, Carter and Statler Hotels Copyright, 19JJ, National Sufay Council.

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204 FRANK A.

i'SO t'AXt'lM ix AsaiiSTOS AttXhHS *> ?

186 CHAPTER 6 Lickint by this time was heavily involved in Nazi tobacco poli tics, though he never joined the Nazi party.

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Year of Publication Title of Article 1935 Determination of Free Silica 1943 A New Methodfor the Determination of Free Silica In Industrial Dusts 1946 Asbestosis 1947 Industrial Health Engineering 1960 Bronchial Asthma in the Aluminium Industry 1961 Occupational Diseases and Industrial medicine 1963 1964 The Pneumoconioses Asbestos Exposure and Neoplasia 1964 1964 1966 1966 1966 1966 1967 1967 Particulate Clouds: Dusts, Smokes and Mists Chapter 3 - Some Physical Characteristics Chapter 6 - Deposition and Filtration Chapter 7 - Sampling and estimation Chapter 9 - Collection Chapter 10 - Health Hazards A Comparison of Impinger and Membrane Filter Techniques for Evaluating Air Samples in Asbestos Plants Quantitative Determination of Chrysotile, Amosite and Crocidolite by X-ray Diffraction Quantitative X-Ray Diffraction Analysis of Crocidolite and Amosite in Bulk or Settled Dust Samples Application ofX-ray Diffraction to the Determination of Chrysotile in Bulk or Settled Dust Samples Measurement ofDust Exposures in the Asbestos Textile Industry The Analytical Toxicology ofIndustrial Inorganic Poisons Hygienic Standards for Chrysotile Asbestos Dust 1967 The Method Used by the U.S.

COMMONWEALTH OF PENNSYLVANIA Department of Labor and Industry RALPH M.

SM-5J (REV- 5*78) Shell Oil Company Interoffice Memorandum December 7, 1931 FROM; Industrial Hygienist TO; See Distribution SUBJECT: Contractor Respirator Programs The attached guideline on Contractor Respiratory Protection Programs is provided for your information.