Feature

Front Matter

Hopes Dim of KR as Cure

Penicillin Action Appears to Produce Electric Field

Scientific “Calf Starter” Will Add to Milk Supply

New Weaving Machine Speeds up Cloth Output

New Symbols for Numbers

Urge No Secret Work Plan

Incubator Eggs Need Extra Oxygen at High Altitudes

Shrews Aid Malaria Fight

Magnetism No Guide

[Photograph]: Baby Penguin

Amazon Rich in Food Oils