Feature

Polarized Light Aids Observations at Sea

New Protein-Digesting Enzyme Found in Pancreas

X-Ray Pictures Show How Opera Singer Produces Tones

Marco Polo Tales Become Fact through Research into History

Erratum: New York to Have Third Planetarium

95-Room House Unearthed in Lost City by CCC Workers

First Glances at New Books

Scientists and Housewives Test Bottle-Top Unscrewing

More Carotene Found in Bacteria than in Carrots

Hidden Temple Found within Mayan “Castle”

Erratum: Aluminum-Coated Mirrors New Aid to Astronomy

Erratum: In Science Fields: New Relativity Theory Suggested for Blind