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Criminal Waste of Natural Gas

The Relations of Matter and Ether

A Simple Conception of the Evolution of Matter

By Charles Morris

Illusions of the Atmosphere and the Traveling Vortex

Tire Substitutes for Passenger Automobiles

Locating Submarine Faults

By Otto Klotz

Ancient Plant-Names

Monument Mines

The Granite Hills of Vermont Furnish the Best Materials

By Le Roy Kenneth

Fodder Substitutes in Germany and Sweden

A New Wax from South America

The Origins of the Chinese

Gunfire and Rainfall

Making Cast Ammunition in France

How Semi-Steel Shells are Made—Composition and the Physical Properties

By E. Ronceray

Animal Camouflage

Smelter Fumes

Experiments in Ray Collecting and Filtering for Microscopists

Conserving Mechanical Ability

How Big Timber is Cut Up

Crystal Growth and Solubility

The Vanishing Art of Ivory Carving

The Manufacture of Tin Plate

By T. Lewis Bailey

The Sunflower

By C. D. Mell

Transmission of Coke Oven Gas in Silesia

The Sun's Position and Rotation

Facts Bearing on its Past and Future Positions in the Universe

By Frederic R. Honey

Revolving Fluid in the Atmosphere

Wind Observations at the Nauen Radio-Telegraphic Station

Using Low-Grade Minerals in Germany

The Constituents of Portlant Cement

Effects of Heat on Celluloid and Similar Materials

The Scientific American Supplement Index for Vol. 85

Tobacco, Fleas and Plague


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    June 29, 1918