Feature

American Tropical Woods

Hormone Aids Muscle Ill

Erratum: Record-Breaking Cold

Monkeys Half as Big as Rats Shown in American Zoo

Erratum: Mercury Vapor Is Used in New Turbine-Generator

Conquest of Large Germs

Nature Ramblings: Overlooked Anniversary

Front Matter

First Betatron Treatment

Two Bright Planets Visible

Volume Information

Opossum’s Diet Shows He Eats Just about Anything