The Fungi of Iowa Parasitic on Plants. Joseph P. Gilman and w. Anderson Archer pages 299-502

Di-Alkyl Di-Aryl Lead Compounds. Anti-Knock Studies. Henry Gilman and Ladislaus Balassa pages 105-108

The Preparation of Some Perfumes and Flavoring Extracts from Furfural and Its Derivatives. Esters of B-Furylacrylic Acid. Henry Gilman and George F. Wright pages 109-112

The isolation of Some Nitrifying Organisms. D.H. Nelson pages 113-116

Some Factors Influencing the Pathogenicity of Ustilago Zeae (Beckm.) Unger. Gustav A. Platz.

Alkyl-Aryl Lead Compounds. Anti-Knock Studies. Henry Gilman, O.R. Sweeney, and J.E. Kerby pages 1-4

Thermal Conductivity of Glasses Transmitting Ultra-Violet Light. Wm. Kunerth and Wm. Berkey pages 5-6

Studies in Home Cleaning. III. Heat Penetration in Meats and Vegetables Processed in Glass Containers. Gail M. Redfield, P. Mabel Nelson and Gertrude Sunderlin pages 7-28

Catalase and Oxidase of the Tomato as Influenced by the Soil Reaction. E.S. Haber pages 29-40

New and Little Known Neotropical Tingitide. Carl J. Drake pages 41-56

The Fermentation of Cornstalks and Their Constituents. I. Studies on the Pectin-Fermenting Bacteria. Lloyd Allen Burkey pages 57-100

Suctoria of the Large Intestine of the Horse. Ta-Shih Hsiung pages 101-104

The Influence on Some Cotton and Linen Fabrics. Marion Griffith, Thelma Sprague, and Vera Berg with Rachel Edgar pages 215-226

The Direct Synthesis of Optically Active Compounds and an Explanation of the Origin of the First Optically Active Compound. Henry Gilman pages 227-230

A Torison Problem in the Curvilinear Coordinates. E.W. Anderson and D.L. Holl pages 231-246

The Immigrant Flora of Iowa. R.I. Cratty pages 247-270

Biological Studies of Pseudomona tumefaciens Sm. and Town, and Fifteen Related Non-pathogenic Organisms. M.K. Patel pages 271-298