The Electrical Conductivity of Cod Liver. L.W. Butler and Jay W. Woodrow pages 233-242

Methods for the Detection of Lipolysis by Microorganisms. H.F. Long and B.W. Hammer pages 343-252

The Libriform Fibers in the Roots of Sweet Clover, Melilotus alba Desr. J.R. Martin pages 253-264

Fractionation of Oxidized Cornstalk Lignin. Paul W. Morgal pages 365-372

The Fermentation of Xylose by the Colon-aerogenes Group of Bacteria. H. Reynolds and C.H. Werkman pages 373-378

Effect of Long Continued Treatment on the Organic Matter, Nitrogen, and Phosphorus Content of Clarion Loam. I. Continuous Corn. F.B. Smith, P.E. Brown, and W.J. Peevy pages 379-396

Some Tingitide (Hemiptera) from Oceania. C.J. Drake and M.E. Poor pages 397-404

The Rhynchophora of Iowa. Gale G. Bleasdell pages 405-445

The Endogenous Phases of the Life Cycles of Eimeria nieschulzi, Eimeria separate, and Eimeria miyairii Coccidian Parasites of the Rat. Robert Lee Roudabush pages 135-164

An Undescribed Chinch Bug from Iowa. Floyd Andre pages 165-168

Contributions to the South Dakota List of Hemiptera. Halbert M. Harris pages 169-176

A Comparative Study of the Germicidal Activity of Certain Compounds. C.S. McCleskey and Edith Swingle pages 177-184

Method of Penetration, Formation of Stylet Sheaths and Source of Food Supply of Aphids. H.D. Tate pages 185-206

The Genera Sporobolomyces and Bullera from the Standpoint of Dairy Products. H.C. Olson and B.W. Hammer pages 207-214

Alcohol Yields from Acid Saccharified Cereals. Gerrish Severson pages 215-220

The Bromination of Furyl Methyl Ketone. Ellis V. Brown pages 221-226

The Oxidation of Furan Methyl Groups. Ellis V. Brown pages 227-230

The Availability of Phosphorous in Some Iowa Soils. F.B. Smith P.E. Brown, C.D. Hoover, and H.C. Miller pages 231-246

Migration of Shore Birds at Goose Lake, Hamilton County, Iowa, During the Fall of 1936. Thos. G. Scott and C.A. Sooter pages 247-252

Two Methods for Measuring Egestion Time from Large Insects. B.Thomas Snipes, Oscar E. Tauber, and Harold Gunderson pages 253-258

Temperature Preference of the Firebrat, Thermobia domestica (Packard) (thysanua). J. Alfred Adams pages 259-266

Studies on Brood A June Beetles in Iowa. Floyd Andre pages 267-280

A Flavor Constituent of Blue Cheese (Roquefort Type). B.W. Hammer and H. Wayne Bryant pages 281-286

Dissimulation of Pyruvic Acid by the Propionic Acid Bacteria. H.G. Wood, Carl Ebb, and C.H. Werkman pages 287-293

The Effect of Phosphate Fertilizers on the Reaction of Grundy Silt Loam in Greenhouse Experiments. J.B. Peterson, F.B. Smith, and P.E. Brown pages 293-310

Biological Assay of Feeding Stuffs in a Basal Ration for Coccidium-growth-promoting Substance. I. Procedure, Yellow Corn Meal, Oats, Oat Hulls, Wheat, Linseed Meal, Meat Scrap. Elery R. Becker and Russel C. Derbyshire pages 311-322

Use of a Discriminant Function for Differentiating Soils With Different Azotobacter Populations. Gertrude M. Cox and William P. Martin pages 323-332

The Role of Phosphoglyceric Acid in the Dissimilation of Glucose by Bacteria of the Escherichia-Aerobacter Group. R.W. Stone and C.H. Werkman pages 1-4

Oxidative Degradation of Silk. Ruth L. Johnson, Eunice Chamberlin Walde and Rachel Edgar pages 5-14

Degradation of Five Weighted Silk Fibroins by Stem. Ruth L. Johnson and Rachel Edgar pages 15-20

Abstracts of Doctoral Theses. pages 21-134