Notes on the Habits of June Beetles in Iowa. (Phyllophaga-Coleoptera). Bernard V. Travis pages 397-406

Bacteria Fermenting Xylan. Roger Patrick and C.H. Werkman pages 407-418

The Insecticidal Action of Some Furan Compounds. Henry Gilman, L.C. Heckert, A.P. Hewlett, J.B. Dickey pages 419-428

Decarboxylation Temperatures of Some Furoic Acids. Henry Gilman, A.M. Janney, and C.W. Bradley pages 429-432

The Taxonomic Position of an Aroma-Producing Mold. Wm. E. Burns pages 433-452

Migration of Bacteria Through Butter. M.A. Collins and B.W. Hammer pages 453-460

The Physical-Chemical Properties of Alcohol-gasoline Blends. I. Influence-of Alcohol Concentration and of Temperature Upon the Water-Holding Capacity. leo M.Christensen, R.M. Hixon, and Ellis I. Fulmer pages 461-466

Changes in the Pectic Constituents of Tomatoes in Storage. Freddie LeCrone and E.S. Haber pages 467-476

Insecticidal Action in the Nitrogen Heterocyclic Compounds. Lyman C. Craig and Charles H. Richardson pages 477-487

Studies on a Color Defect in Butter. B.W. Hammer and H.C. Olson pages 487-492

A Study on the Use of Arsenical Dust for the Control of June Beetles. Bernard V. Travis and G.C. Decker pages 493-498

Observations on the Winter Survival of Plant Lice in Iowa (Homoptera-Aphiidae). Floyd Andre and H.D. Tate pages 499-504

Time of Exposure and Temperature as Lethal Factors in the Death of Oocysts of Eimeria miyairii, a Coccidium of the Rat. Joseph F. Reinhardt and Elery R. Becker pages 505-510