Growth and Sexual Maturity in Brahma and Leghorn Fowl. Nelson F. Waters pages 367-384

Sweet Corn-Its Origin and Importance as an Indian Food Plant in the United States. A.T. Erwin pages 385-390

On the Rates of Contraction of the Isolated Heart and Malpighian Tube of the Insect, Periplaneta orientalis: Method. J. Franklin Yeager and Anna Hager pages 391-396

The Alkaline Hydrolysis of Cellulose Acetate Rayon. Marion Weston, Van Ess, and Rachel Edgas pages 397-408

The Decomposition of Straw in the Production of Artificial Manure, F.B. Smith and P.E. Brown pages 409-415

The Butyl-Acetone Fermentation in Sugar-Media. Hoard Reynolds, H.D. Coile and C. H. Werkman pages 415-426

The Effect of Dry-Cleaning and Mechanic Cleaning Upon Furs. Katherine Cranor, Velma Fisher, Alice Sundt, Louise Perin, Alwine Meyer, and Verna Clark pages 427-448

The Plasmodesms in the Leaves and Stems of Some Angiosperms. John N. Martin pages 449-460