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A Senseless Forest Bill, "Doping" Athletes with Oxygen and more

Saving $2,000,000 Water Waste a Year

The Remarkable Result Accomplished by a Simple Invention

By Herbert T. Wade

Little-known Rainbows

A Group of Neglected Optical Phenomena

By C. Fitzhugh Talman

Perils of the Deck-load

By James G. McCurdy

Photographic Distortion

Real and "Faked"

By C. H. Claudy

The Brahmaputra Expedition, Night Storm Signals in Germany

Improving on Darwin

Johannsen's Theories of Evolution

By Benjamin C. Gruenberg

Curiosities of Science and Invention - April 6, 1912

What Inventors are Doing - April 6, 1912

Simple Patent Law; Patent Office News; Inventions New and Interesting

By L. J. Lesh

II.-Shall My Boy Become an Engineer?

By Franklin DeR. Furman

Growing Easter Lilies to Order


  • Departments

    Correspondence - April 6, 1912

  • Recently Patented Inventions - April 6, 1912

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