The problem of dust phthisis in the granite-stone industry / by Frederick L. Hoffman.

  • Hoffman, Frederick L. (Frederick Ludwig), 1865-1946.
Date:
1922
Catalogue details

Licence: In copyright

Credit: The problem of dust phthisis in the granite-stone industry / by Frederick L. Hoffman. Source: Wellcome Collection.

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    U. S. DEPARTMENT OF LABOR JAMES j. DAVIS, Secretary ; BUREAU OF LABOR STATISTICS ETHELBERT STEWART, Commissioner By FREDERICK L. HOFFMAN, LL D MAY, 1922 WASHINGTON / GOVERNMENT PRINTING OFFICE 1922 BULLETIN OF THE UNITED STATES 1 BUREAU OF LABOR STATISTICS/ • • • • • < i 0.293 INDUSTRIAL ACCIDENTS AND HYGIENE SERIES