Pre-Cambrian rocks of Gunnison river, Colorado, by J. Frederick Hunter.

By: Material type: TextTextSeries: U.S. Geological survey. Bulletin 777Publication details: Washington, Govt. print. off., 1925.Description: vi, 94 p. illus, xv pl. (incl. fold. map (in pocket)) 23 cmSubject(s): LOC classification:
  • QE75 .B9 no. 777
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At head of title: Department of the interior.

Issued also as thesis (Ph. D.) Johns Hopkins university, 1912.

Plates printed on both sides.

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