Feature

Dog Foods Vary Greatly in Nutritive Content

California

[Photograph]: The Cyclotron

Grind Giant Bearing for 200-Inch Telescope

In Science Fields

Cosmic Rays May Have Local Origin in Our Own Galaxy

Keep Stocking Diaries; Life Stories of 253 Pairs

Chances Good for Finding Chemical Cure for Cancer

Stock-Poisoning Selenium Is Undesired Gift of Volcanoes

Nerve Transmission Both Electrical and Chemical

To Bring ‘Em Back Alive Is Fun for You, Too

Calves Found to Gain Weight on “Indigestible” Nitrogen