erovnuli-samecniero-biblioteka Search for 'au:"Davis, Charles Albert,"'

Wood-lot studies,

By Davis, Charles Albert,.
[Ann Arbor] 1906 .
16 p. 23cm..

Peat, essays on its origin, uses and distribution in Michigan.

By Davis, Charles Albert,.
Lansing, Mich., Wynkoop Hallenbeck Crawford co., state printers, 1907 .
1 p. l., [95]-395 p. , Published by the State board of Geological survey, as a part of the report for 1906, and a contribution also to the Biological survey of the state authorized by act 250, session 1905. 24 cm..

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Peat deposits of Maine.

By Bastin, Edson S..
Govt. Print. Off., 1909 .
127 p.

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Papers on the conservation of mineral resources / reprinted from Report of the National Conservation Commission, February, 1909.

By Geological Survey (U.S.).
Washington : Govt. Print. Off., 1909 .
214 p. : , Contents.- Coal fields of the United States, by M.R. Campbell and E.W. Parker.- Estimates of future coal production, by H. Gannett.- The petroleum resources of the United States, by D.T. Day.- Natural-gas resources of the United States, by D.T. Day.- Peat resources of the United States, exclusive of Alaska, by C.A. Davis.- Iron ores of the United States, by C.W. Hayes.- Resources of the United States in gold, silver, copper, lead, and zinc, by W. Lindgren.- The phosphate deposits of the United States, by F.B. Van Horn.- Mineral resources of Alaska, by A.H. Brooks. | Includes index. 24 cm..

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