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How and why Fatalities Occurred in Pennsylvania Bituminous-coal Mines During the 5-year Period, 1926-1930

William Joseph Fene

Published: 1931

Total Pages: 30

Some Information on Timbering Bituminous-coal Mines

John Joseph Vincent Forbes

Published: 1939

Total Pages: 932

Accidents from Falls of Roof and Coal in Bituminous-coal Mines

United States. Bureau of Mines

Published: 1945

Total Pages: 124

Information Circular

Published: 1931

Total Pages: 1026

Bureau Publication

United States. Children's Bureau

Published: 1942

Total Pages: 64

Publications of the Children's Bureau

United States. Children's Bureau

Published: 1942

Total Pages: 666

Standards of Child Health, Education, and Social Welfare

United States. Children's Bureau

Published: 1942

Total Pages: 756

Pressure Losses Due to Bends and Area Changes in Mine Airways

George Edward McElroy

Published: 1932

Total Pages: 654

Geophysical Abstracts, No. 1-127

Published: 1931

Total Pages: 1320

Mining Petroleum by Underground Methods

Carl Ernest Reistle

Published: 1932

Total Pages: 1042