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Sand and gravel dredging methods and costs of J. K. Davison and bro. Pittsburgh, Pa.
Dredging operation; geology; characteristics of deposits; prospecting and exploration; method of sampling; choice of mining method; water supply; dredge equipment; size ratio of raw material; annual output 735,000 t; operating costs; flow sheet; organization chart of one complete crew.
Sand and gravel dredging methods and costs of J. K. Davison and bro. Pittsburgh, Pa.
Dredging operation; geology; characteristics of deposits; prospecting and exploration; method of sampling; choice of mining method; water supply; dredge equipment; size ratio of raw material; annual output 735,000 t; operating costs; flow sheet; organization chart of one complete crew.
Sand and gravel dredging methods and costs of J. K. Davison and bro. Pittsburgh, Pa.
U S Bur Mines -- Information Cir
Williamson, G.H. (author)
1932
10 pages
4 Supp plates
Report
English
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