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Greenland icefields and life in the North Atlantic : with a new discussion of the causes of the ice age / by G. Frederick Wright, D.D., LL.D., F.G.S.A., author of The ice age in North America, et cetera and Warren Upham, A.M., F.G.S.A., late of the Geological Survey of New Hampshire, Minnesota, and the United States.

Gale Nineteenth Century Collections Online: Mapping the World: Maps and Travel Literature Available online

Gale Nineteenth Century Collections Online: Mapping the World: Maps and Travel Literature

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