Feature

First Glances at New Books

Animal Immunized against Parasite for First Time

Prize Winner Describes Study of Living Nerves of Tadpole

Powerful Explosive Made out of Wet Natural Gas

Gland Extract May Be Essential to All Tissues

Vitamin Prepared Chemically for First Time in History

Nature Ramblings: A Roughneck in Fine Feathers

Nerves Grow as If with Aim A.A.A.S. Prize Paper Shows

Front Matter

New Synthetic Rubber Process Is Explained

In Science Fields

Change in Soil Texture Keeps Roads from Freezing