Feature

[Photograph]: Family Group of 50,000,000 Years Ago

Front Matter

Fate of Nobel Prizes Doubtful, under Nazis

“Let It Sag” Solves Heavy Rotor Troubles

Violent End Was ‘Natural’ to Earliest Human Beings

Water Pressure Helps Get Sea Bottom Samples

Rumored “Pep Drug” Use by German Bombers Doubted

Water May Be Means of Spreading Poliomyelitis

Night Vision Sharpened by Drink on Previous Day

America Invaded!

In Science Fields

Severest Heat Waves Come after Sun Starts Southward