Feature

Health Hints for Tropic Vacations

Health Service Fighting Dixie’s Spreading Menace

Blood Letting Used to Check Bleeding in Hemophilia

Earthquake Observatory Established in California

Bacteria Turn Wood Sugars into Valuable Chemicals

In Science Fields

Suffering Seven Millions

Persecution Is Seen as Move against All Religion

Sex Gland Hormones Seem to Influence Cancer Resistance

Front Matter

Psychiatrists Offer Program for “Continental Security”

Continuous Process for Producing Rayon Now in Use