Feature

Fossils of Three-Toed Horse Found in Oregon

In Science Fields

Nature Ramblings: Mouse-Size Opossum

All Flyers Began as Gliders

Soil in Seed-Beds Electrically Heated

Dogs Get New Type of Training to Serve as Guides for Blind

Nearest Outer Galaxy Found to Contain 214,000 Bright Stars

First Glances at New Books

Synthetic Lubricating Oil Made out of Paraffin Wax

Front Matter

Serum Made Safe for Even Protein-Sensitive Patients

Leukemia Disease of Blood Combated by Rabbit Serum