Author: WEED, Walter Harvey, 1898.:
Title: The glaciation of the Yellowstone valley North of the Park. [U.S. Geol. Surv. Bull., 104.]
Description: Washington 1898. 8vo, 22.6cm. Pp. [2],vi,40,[2], 1 folding coloured map, 3 photogr. plates, 1 fig. Orig. printed wrappers. Two small staple rust marks to surface of front cover, good otherwise.

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