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The Submarine

Modern Development of An Old Invention

By Marley F. Hay

Manufacture of Smokeless Powder

Standard Propelling Engines for British Standard Ships

The Banana as a Food

German Aeroplane Engines

Preservation of Fermentation Organisms in Nutrient Media

Automotives in the Great War

A Review of What The United States Is Doing

By Coker F. Clarkson

Science of Bricklaying

Increasing The Strength

A Large Electromagnet

Machining versus Metal

Problems to be Solved By New Methods of Manufacture

Women in Technical Work

Biochemistry of Plants

Evidence of Matter in Space Obstructing the Passage of Light

By W. W. Campbell

Protection against Noise and Vibration

The Biological Aspects of Warfare—III

Instincts and Restraints That Affect Human Relations

By Harry Campbell

A Problem of Wooden Shipbuilding

The Preservation of Hulls

By Bror L. Grondal

Phenomena of Electrolytic Migration

The Collocation of Plasmas within the Cell—I

A Survey of A Mechanical Theory of Heredity

By Louis Legrand

Timber use for Trench Building

Titanium in the Metallurgy of Iron

Sugar Industry in India


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