Cover image for The problem of dust phthisis in the granite-stone industry
The problem of dust phthisis in the granite-stone industry
Title:
The problem of dust phthisis in the granite-stone industry
Author:
Hoffman, Frederick L. (Frederick Ludwig), 1865-1946.
Publication Information:
Washington : Govt. print. off., 1922.
Physical Description:
vi, 178 pages : including tables, diagrams ; 23 cm.
General Note:
At head of title: U.S. Department of labor, James J. Davis, secretary. Bureau of labor statistics, Ethelbert Stewart, commissioner.

Issued also as House doc. 275, 67th Cong., 2d sess.

Previous investigations into the dust hazard of certain trades issued as Bulletins nos. 79, 82, and 231 of the U.S. Bureau of labor statistics.
Language:
English
Format :
Book