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Proceedings of the Iowa Academy of Science for 1931, Volume XXXVIII: Forty-fifth Annual Session Held at Davenport, May 1 and 2, 1931 Illus. with photos, line drawings & charts

Price: 15.00 USD

Des Moines: The State of Iowa, ca. 1931, 8vo. Cloth-backed boards. 343 p. Papers presented include "The Micro-Climate of Zea Mays in Central Iowa" by J. M. Aikman, "Some Misunderstood Slime-mold Species" by Ella Baskerville, "Some Flowering Plants of Black Hawk County, Iowa" by Myrle Marie Juliana Burk, "The Unsoundness of Certain Types of Rocks" by Mark Morris, "The Ancient House People of the Brush Creek Region, in Southeastern Utah" by Albert B. Reagan, "The Rock Shelters of Allamakee County, Iowa, a Preliminary Survey" by Ellison Orr, "Notes on Paleozoic Echinoderms" by A. O. Thomas, "Progress in the Analysis of Cosmic-ray Observations (II) by Le Roy D. Weld, "Instinct or Intelligence in the Great Golden Digger?" by Roy L. Abbott, "Late Fall and Winter Bird Records, 1926 to 1930, in the Upper Missouri Valley" by Wm. Youngworth, etc Very good.

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