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Analysis of the Recent Automobile Endurance Test and Speed Trials

Richard L. Maddox, M.D.

Practical Application of Scientific Education in Germany

The Development of the Sault Ste. Marie Canal

By William Gilbert Irwin

Making Fifty-Ton Anchor Chains

By Day Allen Willet

Silkworm Culture in America

By Waldon Fawcett

Reflex Action of Plants as Compared with the Instincts of Insects

By J. Carter Beard

Mixing Pump

The Ruins of St. Pierre

Extraordinary Trench Digging

By George J. Jones

A 20-Ton Traveling Electric Crane

The Elliott Book-Typewriter

A New Form of Trunk

Business and Personal Wants


  • Departments

    Correspondence - June 21, 1902

  • Index of Inventions - June 21, 1902

  • Recently Patented Inventions - June 21, 1902

  • New Books - June 21, 1902

  • Notes and Queries - June 21, 1902

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