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A Jungle Farm for Zoo Boarders

By James Anderson

Those Armor-Piercing Shells, Is Government Ownership of Wireless Intended?, and more


American-Built Submarine for Spain

The 800-Ton "Isaac Peral" Which Represents the Latest Development of the Art

Industrial Preparedness for Peace

Agricultural Conservation

By E. E. Miller

Economic Conditions in Germany--III

Her Industrial Mobilization

By Albert K. Dawson

A Vegetable Partnership

Some Data on the Lichens, Recently Proposed in Germany as a Source of Food

By Albert A. Hansen

German Military Rifle Practice

Why the British Soldier Is a Better Marksman than His Foe

By Edward C. Crossman

Woman In the Industries

How Far Can She Go, and What Does Her Presence There Mean?

Kapok for Explosives

Short article on substituting kapok for cotton; also, as it can be used in making explosives, garments sent to Germany to prisoners cannot be stuffed with it.

Manganese as Fertilizer

Reagent for Detecting Free Chlorine in Water, Petrograd-Archangel Automobile Line

What Was the Greek Fire of the Ancients?, Shorthand Systems Invented for the Chinese, and more


  • Letters

    Correspondence- February 3, 1917

  • Departments

    The Heavens in February, 1917

  • Inventions New and Interesting- February 3, 1917

  • Recently Patented Inventions- February 3, 1917

  • Notes and Queries- February 3, 1917

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