Studies on the age of gainful workers.
By: By William M. Gafafer, senior statistician, United States Public health service.
Contributors: United States. Public Health Service.
Publisher: U.S. Govt. Print. Off.
Published: 1937
Place of publication: Washington
Language: eng
Subjects: Labor and laboring classes -- United States.; Age.
Other titles: Age of gainful workers, Studies on the.
Notes: "References" at end of each number.
Reprint no. 1806, 1815, 1829 and 1841 and 1896 from the Public health reports, v. 52, no. 10, 15, 23, 30, March 5, April 9, June 4, July 23, 1937; v.53, no. 1, January 7, 1938, respectively.
Nos. 1-2 from the Office of industrial hygiene and sanitation, U. S. Public health service, Washington, D. C.; no. 3-5 from the Division of industrial hygiene, National institute of health, U. S. Publis health service, Washington, D. C.
Table of contents: title: no. 1. Age of gainful workers of the United States, 1920 and 1930.  1937.; title: no. 2. Age of gainful male workers in different geographic regions of the United States, 1920 and 1930.  1937; title: no. 3. Age of gainful female workers in different geographic regions of the United States, 1920 and 1930.  1937.; title: no. 4. Age of gainful white and Negro male workers of the United States, 1920 and 1930.  1937.; title: no. 5. Age of gainful white and Negro female workers of the United States, 1920 and 1930.  1938.