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Now showing items 1361-1370 of 1403
Contributions to economic geology 1921
(Washington: Government Printing Office, 1922)
The occurrence and uses of peat in the United States
(Washington: Government Printing Office, 1922)
Contributions to economic geology 1919
(Washington: Government Printing Office, 1920)
Potash in the Greensands of New Jersey
(Washington: Government Printing Office, 1922)
Peridotite dikes in Scott County Arkansas
(Washington: Government Printing Office, 1922)
The Southern Alaska Range
(Washington: Government Printing Office, 1935)
Geology of the Anthracite Ridge coal district Alaska
(Washington: Government Printing Office, 1936)
The Yukon-Tanana Region, Alaska
(Washington: Government Printing Office, 1937)
Geology of the Monument Valley - Navajo Mountain region, San Juan County Utah
(Washington: Government Printing Office, 1936)
Geology and mineral resources of the Butler and Zelienople Quadrangles Pennsylvania
(Washington: Government Printing Office, 1936)