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American Journal of Science, XXXIV, 12-16, July, 1912. Illus. Isaiah Bowman: The Geologic Relations of the Cuzco Remains. American Journal of Science, XXXIII, No. 196, 306-325, April, 1912. Illus. A Buried Wall at Cuzco and its Relation to the Question of a Pre-Inca Race. Ibid., XXXIV, No. 204, 497-509, December, 1912. Illus. The Cañon of the Urubamba.
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