The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . ?•^VM o/n T A N^fA ,^AV-- c ?!< Ctnii»b»iVl. Fig. 196—Nampa figurine and map of the Snake river valley Illustrating the photograph of the bowlder bed at Pocatello described In the text, see page 615. In addition to these general considerations we have herea most interesting and suggestive special situation from whichmuch evidence may be deriv
The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . ?•^VM o/n T A N^fA ,^AV-- c ?!< Ctnii»b»iVl. Fig. 196—Nampa figurine and map of the Snake river valley Illustrating the photograph of the bowlder bed at Pocatello described In the text, see page 615. In addition to these general considerations we have herea most interesting and suggestive special situation from whichmuch evidence may be derived in support of the foregoinginterpretation of the facts. In the summer of 1890, whilemaking investigations in the Snake River Valley at Pocatello,350 miles above Nampa, and where the elevation is 2000 feethigher,! was confronted with an immense delta of bowlders,many of them three and four feet in diameter, at a consider-able distance from the foot hills of the mountains to the south,which seemed inexplicable from any natural causes within 704 THE ICE AGE IN NORTH AMERICA. my knowledge. This delta of bowlders had been covered witha thin deposit of loam, and the city of Pocatello was builtupon it. While I was there the city authorities wereendeavor-ingtoputinasewersystem, but wer
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Keywords: ., bookauthoruphamwarren18501934, bookcentury1900, bookdecade1910
