Feature

Cause of Scarlet Fever Believed to Be Virus

Secret of Sex Determination Sought with X-Ray Studies

Psychologists Puzzled over Adaptability of Workers

[Photograph]: Spinal Learning

New Gas Is Discovered High in Atmosphere of the Earth

Winner “Flabbergasted” Sees Many Problems Ahead

Individuals Changing Sex Neither Man nor Woman

Mystic Rites of West Africa Revealed to Harvard Scientist

Arctic Canada Looks for an Improved ‘Husky’ Dog

Holly Berries Made to Grow without Pollination

[Photograph]: Perilous Treasure

Expedition to Seek Age of the Panama Isthmus