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Scientific American, Vol. 68, No. 10 (March 1893) (1893)

leaf 7

An illustration from Scientific American, Vol. 68, No. 10 (March 1893), 1893, leaf 7
they had been kept from erosion, proba- glacial lakes must have been frozen solid by the in- more like some region in Arizona than any portion of tense cold that heralded the glacier's approach. The bly for ages, by the roots of dense thickets and great the Hoosier State. The accompanying… … must have had a different A RECENT EROSION IN INDIANA. musk ox from Greenland. © 1893 SCIENTIFIC AMERICAN, INC.

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