Geologic History of the Yosemite Valley

Author(s): Matthes, François E.

Copyright: 1930, GPO, Washington
Specifications: Professional Paper #160, 1st, 4to, pp.vi, 137, 87 bw photos (2 fldg), 38 figs, 5 color fldg maps (3 in pocket), appendix, wraps
Condition: cover w/ lower 2” of spine missing, back cover mostly off, good+, maps w/ orig folds & no tears, fine