Volume 91, Number 4 (1984)
Issue cover date: December 1984
Front Matter
Research
Solar Radiation in Iowa: The Historical Record p. 125-127
Laurent Hodges
Performance of Sorghum Hybrids in Relation to Sources of Resistance to Biotype C of the Greenbug p. 128-131
T. F. Kwolek, R. E. Atkins, and O. S. Smith
Status of Four Orchid Species at Silver Lake Fen Complex p. 132-139
Sara Carroll, Robert L. Miller, and Paul D. Whitson
A Biosystematic Study of the Genus Elymus (Gramineae: Triticeae) in Iowa p. 140-146
Mark L. Gabel
Late-Winter Abundance and Substrate Associations of Benthos in Pool 13, Upper Mississippi River p. 147-152
Wayne A. Hubert, Gene E. Darnell, and Daniel E. Dolk
Breeding Birds of Sheeder Prairie Preserve, West-central Iowa p. 153-163
Rene Laubach
Back Matter
Index for Volume 91 p. 164-164