Home > Iowa Academy of Science > Journals & Newsletters > Journal of the Iowa Academy of Science > Volume 98 (1991) > Number 4
Volume 98, Number 4 (1991)
Issue cover date: December 1991
Front Matter
General Interest Article
Annual Report of the Iowa Academy of Science, 1990-91 p. 189-198
Paul E. Rider
Research
Iowa's Climate as Projected by the Global Climate Model of the Goddard Institute for Space Studies for a Doubling of Atmospheric Carbon Dioxide p. 153-158
E. S. Takle and S. Zhong
Heating Degree Days in Iowa Relative to Home Natural Gas Consumption, Conservation Efforts, and Long-Term Trends p. 159-161
Richard E. Carlson
Comparison of Dinitrogen Fixation and Nitrogen Transfer Potentials of Four Red Clover Cultivars p. 162-166
D. E. Farnham, A. P. Mallarino, W. F. Wedin, and I. T. Carlson
Food Habits of the Northern Saw-whet Owl in Central Iowa: Effects of Roost Location p. 167-169
Stephen J. Dinsmore and William R. Clark
Studies of the Precambrian Geology of Iowa: Part 1. The Otter Creek Layered Igneous Complex p. 170-177
Kenneth E. Windom, Karl E. Seifert, and Raymond R. Anderson
Studies of the Precambrian Geology of Iowa: Part 2. The Matlock Keratophyre p. 178-181
Kenneth E. Windom, Karl E. Seifert, and Raymond R. Anderson
Studies of the Precambrian Geology of Iowa: Part 3. Geochronologic data for the Matlock drill holes p. 182-188
W. R. Van Schmus and E. T. Wallin
Back Matter
Index for Volume 98 p. 199-200
