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World Wide Changes of Temperature

Can Seasonal Forecasts be made from a Study of the Weather of the World?

By Charles F. Brooks

French Legislation upon Hydraulic Plants

Harnessing a Volcano to a 15,000-Horse-Power Electric-Power House

Indoor Telephotography

The Cohune Palm

A Central American Tree, the Nuts of which Produce a Valuable Oil

By C. D. Mell

A Novel use of Okra

Origin and Culture of the Navel Orange

Lag in U. S. Naval Radio Time Signals

The Laundries of the Ancients

By Henri Rousset

Importance of the Relation of Solid Surfaces and Liquid Films in some Types of Engineering Construction

By Clifford Richardson

The Hippocampus

Passive State of Metals

Hard Rubber Sponge

New Work for Women Created by the War

German Aeroplanes in the War

The Training of the Analyst

By Frank Browne

Measure of Atmospheric Pressure

The Influence of some Elements on the Mechanical Properties of Steel

A New Horned Snake

The Contamination of Running Water with Tubercle Bacilli

Boiler Efficiency

Transfer of Heat to the Plates

Geared Turbines

The Value of High-Level Meteorological Data—I

In Forecasting Changes of Temperature

By S. P. Fergusson

Modifications in the Dilatability of “Invar” Produced by Mechanical and Thermal Treatment

Weighing Apparatus in Industrial Plants

Suggestions for the Selection and Maintenance

By Fritz Reichmann

Linking up Electric Supply Lines

Physical Geography of the Southern Algerian-Moroccan Frontier

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    March 31, 1917

    Scientific American Space & Physics