Feature

Gastric Ulcer Treated with Extract from Hog’s Stomach

Steel Jar Will Rescue Men Imprisoned in Submarines

Male Sex Hormone Prepared in Pure Form for First Time

French Scientists Report Two New Sex Hormones

Probably No Elements Heavier than Uranium

Nature Ramblings: The Crow

Epilepsy May Be Caused by Permeable Brain Cells

First Glances at New Books

Nervous Stimulation Can Produce Ulcers in Stomach

Corroded Coins May Set Date of Persian Palace

Great Submarine Gorge Acted as Dump Cart for Glaciers

New Weapons Forged to Fight Scarlet Fever