Feature

Flour Made from Dried Fish Becomes Valuable Food

Fossils of Three-Toed Horse Found in Oregon

Nature Ramblings: Mouse-Size Opossum

Soil in Seed-Beds Electrically Heated

First Glances at New Books

Front Matter

Invention Makes Electricity Directly from Sunlight

Serum Made Safe for Even Protein-Sensitive Patients

Leukemia Disease of Blood Combated by Rabbit Serum

Synthetic Lubricating Oil Made out of Paraffin Wax

[Photograph]: Most Powerful X-Ray Tube for Medical Use

Music Quality Affected by Humidity in the Air