Feature

Two Early Presidents Were Meteorologists

Evolution Extended to Include Intelligence as Prime Factor

Mystic Rites of West Africa Revealed to Harvard Scientist

Front Matter

Bulldog’s Build, Behavior Due to Glandular Defects

Tomato Roots without a Plant Develop Tremendous Pressures

[Photograph]: Perilous Treasure

1938 Will Be Healthy with Probably No Major Epidemics

Twelve Kinds of Snow Recognized by Science

Useful Bacteria in Lakes Encouraged by Solids

Erratum: Military Activity in China Has Increased Neurosyphilis

Science Progress in 1937