Feature

Seek More Evidence That Man Knew Extinct Animals

Rotary Milking Machine Brings Factory Methods to Farm

Welfare of American Youth Motive of Conference

Pilot Can Now Land His Plane without Seeing the Field

Honored for Research on Chemistry of Blood

Nature Ramblings: Grosbeak

First Glances at New Books

Indian Scientist Awarded Nobel Physics Prize

Front Matter

Dust Avalanche Falls on London

New Orleans Earthquake Located by Old Method

Ancient American Inventions