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The Senate Bill for Safe Ships, The Royal Society and more

Black and White Men in Invisible Light

Tricks Played by Ultra-Violet Rays

By Gustave Michaud and Fidel Tristan

"Heart Stopping" as a Profession

Examples of Muscular Control of Scientific Interest

By John B. Huber

The "Commonwealth" - "New Hampshire" Collision

The Bulkhead and the Watertight Deck Prove their Value

Artificial Surf Baths

A Miniature Indoor Ocean

A Mammoth Norwegian Power Plant

Telemarken's Great Industry

Henri Poincaré

The Passing of a Great Mathematician and Philosopher

By J. W. N. Sullivan

Hurrying Nature

A New Method by Which Trees that Fruited in Eight Years are made to Bear in two

By William Atherton Du Puy

Preventing Collisions at Sea

A Mechanical Application of the Bat's Sixth Sense

By Hiram Maxim

The Trade-mark as a Business Asset, The Federal Trade-mark Law.-III and more

[Copyright, 1912, by Mimn & Co.]

By W. E. Woodward

The Why and Wherefore of the Muffler and Cut-out

By Harold Whiting Slauson


  • Letters

    Correspondence - July 27, 1912

  • Recommended

    New Books, Etc. - July 27, 1912

  • Departments

    Inventions New and Interesting - July 27, 1912

  • Recently Patented Inventions - July 27, 1912

  • Notes and Queries - July 27, 1912

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis