Feature

Only 48 Ancestors Really Count in Your Heredity

Odors Described by Numerical Tagging

Roots Grown Free from Tops of Plants

Tissues, Rather than Blood, Fight Invasion by Germs

Mental Disease Found Common in Indians

First Glances at New Books

Fish Grow Best in Water That Is Not Too “Clean”

Need for Affection May Be Cause of Stomach Ulcers

West African Negroes Have Thirteen Kinds of Marriage

Diagram Classifies Radio Tubes

Copper Cures Sickness of Florida Orange Trees

Bright Stars Fill the Sky