Feature

Doctors Call Powder and Paint Menace to Flappers’ Health

Evidences for Evolution: No. 4. Tools of Old Stone Age Proof of Man’s Cultural Evolution

New Machine Tool Cuts Metal One Third Faster

New Universes Vie with Minute Animals in Science Prize Award

Universe Expands When Astronomer Discovers Other Stellar Systems

Sun Spots Control Animal Populations, Scientist Claims

African Skull May Be Important Link in Man’s Evolution

The Sun and Our Weather

Diphtheria Danger High in Isolated Communities

African Manlike Ape Skull New Link in Man’s Ancestry

Protozoa Killing Promises to Aid Man’s Health

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