2 results filtered with: Ohio. State Board of Health
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- Online
A survey of industrial health-hazards and occupational diseases in Ohio / by E. R. Hayhurst, A. M., M. D., director, Division of Occupational Diseases, State Board of Health.
Hayhurst, Emery Roe, 1880-1961.Date: 1915
- Books
- Online
Preliminary report of an investigation of rivers and deep ground waters of Ohio as sources of public water supplies / by the State Board of Health.
Date: 1898