Feature

Science Internationalism Aided by “Scientific Immigrants”

The Leonids of 1833: “A Classic of Science”

Nature Ramblings: Mountain Aristocrat

Will the Great Shower Return?

Breathing of Living Tissue Is Disturbed by X-Rays

Difference in Brightness Is Biggest Auto Light Problem

Front Matter

Industrial Inch Loses Two Millionths of Length

Octane Rating of Gasoline Not Wholly Dependable

Bright Stars Plentiful in the November Evening Skies

First Glances at New Books

Field Museum Visitors See Bit of Abyssinia