7th annual report of the United States Geological Survey to the Secretary of the Interior 1885-86 by J.W. Powell director - Published 1888 US Government Printing Office

Book is fully illustrated - see list of illustrations

Great volume containing the following major sections:

The Rock Scoring of the Great Ice Invasions

Obsidian Cliff - Yellowstone National Park

Geology of Marthas Vinyard

On the Classification of the Early Cambrian and Pre Cambrian Formations

The structure of the Triassic Formations of the Connecticut Valley

Salt Making Processes in the US

Book is in overall fine shape - some wear on covers, pages overall fine and clean, spine cover has split so part of it is loose on one side

Be sure to check my other listings for more US Geological Survey books

See my other listings for more great items

I will be happy to combine shipping if possible

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