Author: Pumpelly, R., Wolff, J.E., & Dale, T.N.:
Title: Geology of the Green Mountains in Massachusetts. [Monogr. U.S. Geol. Surv., 23.]
Description: Washington: Government Printing Office, 1894. 4to. Pp. xiv,206, 19 (partly fold.) plates of views, sections, etc., 3 (2 fold.) coloured maps, 76 figs. and photos in text, index. Orig. cloth. Bindng very slightlu rubbed, contents fine.

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