Determination of Organic Acids. III. Note on the Use of the Isoamyl Ether-Water System in the Partition Method. C.H. Werkman pages 1-4

Hydration in Sweet Corn. A.L. Bakke and A.T. Erwin pages 5-14

The Cannizzaro Reaction with Furfural. Henry Gilman and William M. Selby pages 15-18

A Polymeric 2-Furfural Mercaptan. Henry Gilman and A.P. Hewlett pages 19-24

The Varietal Response and Inheritance of Resistance in Barley to Erysiphe graminis hordei p.f.4. S.M. Dietz pages 25-34

Experiments on the Biology of Infusoria Inhabiting the Rumen of Goats. Helen A. Mowry with Elery R. Becker pages 36-60

The presence of Mycelium and Oospores of Certain Downy Mildews in the Seeds of Their Hosts. I.E. Melhus pages 185-188

2-Methyl-3-Furoic Acid. Henry Gilman and Robert Burtner pages 189-192

The Reduction of Hydrofuramide to Tri-a-Furylamine. Henry Gilman and J.B. Dickey pages 193-194

Further Studies on the Insect Fauna of Iowa Prairies. George O. Henrickson pages 195-211

Constant Temperature and Humidity Apparatus for Use in the Experimental Study of Insects. T.A. Brindley and C.H. Richardson pages 211-222

A Preliminary Report on Intestinal Protozoa of White Grubs (Phyllophaga spp.-Coleoptera). Bernard Travis and E.R. Becker pages 223-236

Pulps Prepared from the Parenchymatous and Vascular Tissues of the Cornstalk. Florence E. Hooper pages 237-242

The Literature of Alkylated Carbohydrates. IV> Fructose Derivatives. Harold. W. Coles pages 243-250

Efect of Salts on Alkali Disinfection. O.E. Lowman with J.H. Buchanan and Max Levine pages 251-268

The Action of a Transverse Electrostatic Field Upon a Propane Flame. J.K. McNeely, O.A. Brown, and C.W. Crosno pages 269-284

A Study of Crosses Between Trebi and Three Smooth-Awned Varieties of Barley. Pedro A. David pages 285-316

Abstracts of Doctoral Theses I. The Electronic Interpretation of Reactions Applied to Halogen Organic Compounds. II. A Study of Antiknock Compounds. Nathaniel John Beaber pages 317-320

I. The Quinhydrone Electrode and Soil Reaction. IL The Gravimetric

Method for the Determination of Carbonates in Soil.III. Application of the Quinhydrone Electrode to Investigations

on Base Exchange in Soil. Emerson R. Collins pages 321-326

Insecticidal Action in the Nitrogen Heterocyclics. Lyman C. Craig pages 327-330

Problems Related to the Commercial Production of Levulose. Jack W. Eichinger pages 331-334

The Effect of Chromium on White Cast Iron. Clarence Dale Foulke pages 335-338

The Chemical Sterilization with Alkalies. James Roger Hall pages 339-342

Problems Related to the Commercial Production of Levulose. James H. McGlumphy pages 343-348

The Nutritive Value of Cereals and its Relation to Processing. Thomas B. Parks pages349-350

Insecticidal and Chemical Studies of Pvrethrum and Kerosene Extracts of Pyrethrum. Henry Howe Richardson pages 351-354

Reproduction and Lactation on Simplified Diet. Milton Dwight Taylor pages 355-357

The Lierature of Alkylated Carbohydrates I. Triose, Tetrose, and Pentose Derivatives. Harold W. Coles pages 61-70

The Lierature of Alkylated Carbohydrates. II. Galactose Derivatives. Harold W. Coles pages 71-76

The Lierature of Alkylated Carbohydrates. III. Alkylates Mannose Derivatives. Harold W. Coles pages 77-84

Orientation in the Furan Nucleus. Henry Gilman and George F. Wright pages 85-88

The Action of Citric Acid and Its Salts in Sugar Solution. J.H. Toulouse, J.H. Buchanan, and Max Levine pages 89-120

Determination of Organic Acids IV. A Method for the Provisional Identification and Quantitative Determination of Two Fatty Acids in a Mixture. C.H. Werkman pages 121-126

Three Species of Coccidia from the Woodchuck, Marmota monax. H.B. Crouch and E.R. Becker pages 127-132

The Chemical Action of Aerobacter faeni on Xylose and Sucrose. Calvin R. Breden with Ellis I. Fulmer pages 133-154

The Effect of Manures and Crop Residues on Nitrogen Changes and Microorganisms in the Soil. F.B. Smith and P.E. Brown pages 155-166

The Isomeric Forms of Lactic Acid Produced in Milk by Some of the Anaerobes. R.V. Hussong and B.W. Hammer pages 167-170

Acidity and Color Changes in Tomatoes Under Various Storage Temperatures. E.S. Haber pages 171-184