01029cam a22002651 4500 sg 35000057 DLC 20260227112740.0 790521s1935 xx 000 0 eng c sg 35000057 (OCoLC)4985706 Library, U.S. Surgeon-General's Office OCl OCoLC DLC premarc RA576 .G67 Green, H. L. (Henry Lionel), 1900- Physical methods for the estimation of the dust hazard in industry (with special reference to the occupation of the stonemason) by H. L. Green and H. H. Watson. London, H. M. Stationery off., 1935. 56 p. illus., IV pl. on 3 l., tables, diagrs. 25 cm. Medical research council (Gt. Brit.) Special report series, no. 199 At head of title: ... Privy council. Medical research council. "References": p. 55-56. Dust. Stonemasons. Watson, H. H. (Harold Henry), 1910- 90266 90266