The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580

Eimeria beckeri n. sp.; a New Coccidium From the Ground Squirel, Citellus pygmaeus. W.L. Yakimoff and B.D. Sokoloff pages 581-586

The Mitogenetic Effect on yeast of Oligodynamic Radiation From Metals. Margaret M. MacDonald. pages 587-596

The Deflection of an Isotropic Rectangular Plate Under the Action of Continuous and Concentrated Loads When Supported at two Opposite Edges. D.L. Holl pages 597-608

The 1934 Spring Migration of Shore Birds Through Clay and Palo Alto Counties, Iowa. Logan J. Bennett pages 609-616

The 1934 Fall Migrartion of Shore Birds Through Clay and Palo Alto Counties, Iowa. Gerald B, Spawn pages 617-624

Bob-White Winter Survival on Experimentally Shot and Unshot Areas. Paul L. Errington and F.N. Hammerstrom Jr. pages 625-640

Histological Studies of the Development of the Root and Crown of Alfalfa. Austin O. Simonds pages 641-660

Algeria-A Popping Seed Used in Mexico as a Substitute for Pop Corn (Amaranthus caudatus L.var. leucospermus Th.) A.T. Erwin pages 661-666

A Preliminary Report on the Anatomical Study of an Inherited Eye Defect in the Guinea Pig. J. H. Whitlock pages 667-676

Intracellular Abnormalities Associated With Yellow Dwarf of Onions. H.D. Tate pages 667-685