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Front Matter

Einstein Discusses Revolution He Caused in Scientific Thought

An excerpt from a speech Albert Einstein gave in Pasadena on January 15, 1931.

Relativity Passes Three Tests Declared Crucial by Einstein

Possible 1932 Flu Epidemic Indicated by Ten-Year Survey

Tropical Fungus Spores Resist Cold as Well as Heat

King Nabonidus and the Missing Link City

In Science Fields

Women Remember Pleasant Events; Men Unpleasant

Government to Check Vitamin Food Claims

To Study the Mayas by Living with Them

Eros: Asteroid 433: “A Classic of Science”

Earth’s Core Was the Child of Two Great Flaming Suns