Feature

Iron Masses under Meteor Crater Shown Magnetically

First Glances at New Books

Two National Soaring Meets Planned for Present Year

Nature Ramblings: Mosquitoes and Ducks

Animals of Cooler Regions Larger than Warm-Land Kin

New Lamps Join Familiar Bulbs to Brighten Life

New Saliva Test Indicates Likelihood of Tooth Decay

New Swedish Process Freezes Salt from Ocean

Ancient Rocks Identified by Two Trilobite Genera

Pueblo War Songs Link Indians with Far East

Low-Cost Farm Unit Built Wholly of Steel

Remedy for Influenza Hinted in New Report