The Control of Plastid Pigment Formation by a Virescent Gene, Pale-Yellow-1, of maize.

Oxidative Phosphorylation by Sweet Potato Mitochondria and Its Inhibition by Polyphenols.

Cofactor Requirements for Oxidation of Alpha-Keto Acids by Sweet Potato Mitochondria.

Floral Initiation in Cestrum nocturnum, A Long-Short Day Plant. II. A 24-Hour Versus a 16-Hour Photoperiod for Long Day Induction.

Floral Initiation in Cestrum nocturnum, a Long-Short Day Plant. III. The Effect of Temperature upon Long Day and Short Day Induction.

Studies on Tobacco Alkaloids. I. Changes in Nicotine and Nornicotine Content in Nicotiana.

Utilization of Glycerol in the Tissues of the Castor Bean Seedling.

The Fate of 2,4-Dichlorophenoxyacetic Acid in Bean Seedlings. II. Translocation.

Indoleacetic Acid and the Utilization of Radioactive Pyruvate and Acetate by Wheat Roots.

The Capacity of Leaves of Bryophyllum calycinum to Recover from Prolonged Exposure to Darkness or to Light.

The Dark Fixation of CO₂ by Succulent Leaves: The First Products.

Permeability of Vicia Faba Root Segments to Water as Measured by Diffusion of Deuterium Hydroxide.

Effect of Radiation and Growth Regulators on Leaf Abscission in Seedling Cotton and Bean.

News and Notes

Chlorophyllase in Soybean.

A Simple Automatic Short Photoperiod Device.

Photoperiodic Induction of Disbudded Perilla Plants.

On the Significance of Measurements of Amino Acid Incorporation into the Proteins of Cell-free Preparations.

Use of an Optical Planimeter for Measuring Leaf Area.