Fish Population Estimates in Small Ponds Using The Marking and Recovery Technique. Reynold A. Fredin pages 363-384

Bob-White Quail Nesting and Production in Southeastern Iowa. W.D. Klimstra pages 385-396

The Stannous Chloride Equilibrium. Frederick R. Duke and Welby G. Courtney pages 397-404

Fisheries Investigations on Two Artificial Lakes in Southern Iowa. William M. Lewis pages 405-420

Electrophoretic Studies on Swine. Joseph F. Foster, Robert W. Friedell, Damon Catron, and Merwin R. Dieckmann pages 421-428

Notes on Some Amphibians and Reptiles From Davis County, Iowa. W.D. Klimstra pages 429-432

The Polarography of Vitamin B12. Harvey Diehl, Robert R. Sealock, and John Morrison pages 433-442