Feature

Vitamin and Poison from Same Harvest of Tobacco

“Sleeping Sickness” Decreases in West

Shell “Sees” Target and Explodes before It Strikes

Study Reveals How Spain Defended Early America

In Science Fields

Mars Comes Close

Squeaks of Dry Ice Pick out Precious Stones from Fakes

Second Neujmin Comet Proves to Be Old One

Science Service Backs Science Clubs Movement

Nature Ramblings: Ducks, Limited

Front Matter

Anti-Gray Hair Vitamin Succeeds in Human Subjects