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Features

Flying in a Wind, Chutes as Fire Escapes and more

Vacant Regions in the Milky Way

Herschel's "Windows of Heaven"

By Mary Proctor

Curious History of a Great Obelisk

By Deshler Welch

Measuring the Deviation of Bore Holes

By J. F. Springer

The Competitive Designs for the New Quebec Bridge

A Notable Competition Involving Thirty-eight Separate Plans

Anti-rolling Tanks for Steadying Ships at Sea

How Artificial Waves Are Made to Counteract the Waves of the Sea

Abstracts from Current Periodicals - May 20, 1911

Phases of Science as Other Editors See Them

A Wonderful Dinosaur Mummy

A Relic of the Prehistoric Past

By Walter L. Beasley

Curiosities of Science and Invention - May 20, 1911

A Seven-cent Battery

By W. J. C

Drawing Solid Objects with a Reflecting Apparatus

By W. R. Inghram

Home-made Anemometer

By Frederick B. Gilbert

The Inventor's Department - May 20, 1911

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

By R. W. Crowly

The Earning Power of Your Money

You Get 3% to 5% on Loans and Bank Deposits. The Borrower and Banker Make 15% to 80% and Up. The Following Article Tells You How To Get What They Get.

Packing for Export

Departments

  • Letters

    Correspondence - May 20, 1911

  • Recommended

    New Books, Etc. - May 20, 1911

  • Departments

    Recently Patented Inventions - May 20, 1911

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May 20, 1911

Think Outside the Gift Box