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221.
222.
223.
Studies of Basin-range structure / Grove K. Gilbert. by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington : U.S. Govt. Print. Off., 1928
Availability: No items available.

224.
Notes on the geology of the Mamfe Division, Cameroons Province, by R.C. Wilson ... by Series: Occasional paper (Geological Survey of Nigeria) ; no. 6.
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: [London] Published by authority of the Nigerian government [Waterlow & Sons Limited] 1928
Availability: No items available.

225.
226.
The Mother Lode system of California, by Adolph Knopf. Prepared in cooperation with the California State Mining Bureau. by Series: Geological Survey professional paper ; 157.
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington, U.S. Govt. Print. Off., 1929
Availability: No items available.

227.
Ground water in Yellowstone and Teasure counties, Montana / by George M. Hall and C. S. Howard. by Series: U. S. Geological Survey water-supply paper ; 599
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington : Govt. print. off., 1929
Availability: No items available.

228.
229.
Upper Colorado river and its utilization/ by Robert Follansbee. by Series: Geological Survey water-supply paper ; 617.
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1929
Availability: No items available.

230.
231.
The Green River and its utilization, by Ralf R. Woolley by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington, U.S. Govt. Print. Off., 1930
Availability: No items available.

232.
The flora of the Denver and associated formations of Colorado / by Frank Hall Knowlton ; a posthumous work edited by Edward Wilber Berry. by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington : U.S. Gov't. Print. Off., 1930
Availability: No items available.

233.
The coal fields of the United States. General introduction, by Marius R. Campbell; Ohio, by J. A. Bownocker. by Series: U.S. Geological survey. Professional paper ; 100
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington, U.S. Govt. print. off., 1929
Availability: No items available.

234.
Geologic history of the Yosemite valley, by François É. Matthes. by Series: U. S. Geological survey. Professional paper 160
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington, U.S. Govt. print. off., 1930
Availability: No items available.

235.
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237.
Geology and ore deposits of the Goodsprings quadrangle, Nevada / by D. F. Hewett. by Series: Geological Survey professional paper ; 162.
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington : U.S. Gov't. Print. Off., 1931
Availability: No items available.

238.
239.
Origin and microfossils of the oil shale of the Green River formation of Colorado and Utah, by Wilmot H. Bradley. by Series: U. S. Geological Survey. Professional paper 168
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington, U.S. Govt. Print. Off., 1931
Availability: No items available.

240.
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