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Life and Light

The Process By Which Living Organisms Produce Light

By Raphael Dubois

Cosmology among Natives of South Africa

A Silky Eater of Ants

A Tiny Animal of Exclusive Tastes And Peculiar Habits

By William Beebe

How Fishes Were Named

Twilight Phenomena

The Ferro-Alloys

A Brief Description of their Manufacture, Properties and Uses

By J. W. Richards

Weed Destruction in Sugarcane Fields

The Influenza Epidemic

A Visit to the British Front in September

Condition of Cities in Northern France on Enemy's Final Retirement

By Hamilton M. Wright

Reinforced Metals

Food Shortage and High Prices

The Animus of German Scientific Men

Pneumonia as a Public Health Problem

By Rufus Cole

Scientific Plant Breeding

A New Method of Separating Slate from Coal

That Promises Important Economies

By H. M. Chance

Naming Mountains in India

Meteorology in Relation to Aeronautics—I

A Review of the Data Required by an Aviator When in the Air

By W. H. Dines


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