Feature

Medical Progress “Miraculous” in Last Half Century

Doctors Call Powder and Paint Menace to Flappers’ Health

New Universes Vie with Minute Animals in Science Prize Award

Universe Expands When Astronomer Discovers Other Stellar Systems

Protozoa Killing Promises to Aid Man’s Health

African Skull May Be Important Link in Man’s Evolution

African Manlike Ape Skull New Link in Man’s Ancestry

Sun Spots Control Animal Populations, Scientist Claims

Diphtheria Danger High in Isolated Communities

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The Sun and Our Weather

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