Feature

Front Matter

[Photograph]: Polar Airdrome

Here’s Recipe for Cocktail Served by Fifth Columnists

Vitamin $text{B}_{1}$ in Irrigation Fails to Aid Orange Trees

Completion of 200-Inch Telescope Is in Sight

Monkeys Not Dangerous as Disease Carriers

Volume Information

[Photograph]: For Precision

Nature Ramblings: Poison Preventives

Secrets of Living Cells Shown by Electron Microscope

Sky as a Clock

Life and Death Closely Connected with Electricity