00985cam a22002651 4500 med47000993 DLC 20260227111601.0 750415s1947 dcuabcf b f000 0 eng med47000993 (OCoLC)1277935 DLC TxShA OCoLC ISS DLC HD7269.M63 U6 1947 331.822 I 1.2:B 54 United States. Coal Mines Administration. A medical survey of the bituminous-coal industry. Report of the Coal mines administration. Washington [U.S. Govt. Print. Off.] 1947. xxiv, 244 p., 1 l., 67 p. incl. illus. (incl. group port., maps) tables, diagrs. pl. 29 cm. "The coal miner and his family. Supplement to the report": 1 l., 67 p. Bibliography: p. 229-231. Coal miners health and hygiene United States. Coal miners United States. Hospitals United States. 38236 38236