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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

Measuring the Deviation of Bore Holes

By J. F. Springer

Curious History of a Great Obelisk

By Deshler Welch

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

Home-made Anemometer

By Frederick B. Gilbert

A Seven-cent Battery

By W. J. C

Drawing Solid Objects with a Reflecting Apparatus

By W. R. Inghram

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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