Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 81 (1974) > Number 3
Volume 81, Number 3 (1974)
Issue cover date: September 1974
Front Matter
Research
Bacteria of Foods and Utensils in the Luther College Food Service, Decorah, Iowa p. 93-97
Marilyn Peitso, Cheryl Anderson, and John Tjostem
Video Tape Tutoring p. 98-99
J. W. Nilsson
A Monarch Butterfly Roosting Tree in Iowa p. 100-101
Mary Swander
Thermal Structure of Clear Lake, Iowa p. 102-107
Roger W. Bachmann and Theodore V. Jacobsen
Notes on Iowa Diatoms XII: Common Diatoms of Big Spirit Lake p. 108-110
Milbert Krohn, Michael Edwards, and John D. Dodd
Some Temporal Factors in Visual Pattern Recognition. II p. 111-115
Lee S. Cohene and Harold P. Bechtoldt
The Crinoid Genus Sygcaulocrinus from Iowa p. 116-118
Harrell L. Strimple
Megaliocrinus johnsoni, a New Camerate Crinoid Species from Middle Pennsylvanian Rocks of Illinois p. 119-121
H. L. strimple
Compositional and Textural Analyses of Kansan and Tazewell Till in a Portion of Northwest Iowa p. 122-126
Kent Van Zant
Significance of Endothelial Cell Histidine Decarboxylase Activity p. 127-129
James R. Yarnal and Dennis F. Rolek
Analytical Methods for Characterization of Fly Ash p. 130-134
Deniel C. Cavin, William A. Klemm, and George Burnet
Back Matter
