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Features

Excellent Foundations for the Gatun Locks

The Smoke Peril at Fires

Needed--A Rational Railroad Track

The American Museum of Safety Devices and Industrial Hygiene

By William H. Tolman

Extraordinary Insect Enlargements

By Walter Beasley

The New White Star Liner “Adriatic”

By Our London Correspondent

Charles Haynes Haswell

Eclipse of the Sun in July, 1907

By Frederic R. Honey

Building a Town Site by Suction Dredge

By Day Allen Willey

A Curious Illusion

By Gustave Michaud

An X-Ray Stereoscope

By Alfred Gradenwitz

Departments

  • Departments

    Correspondence - May 25, 1907

  • Recently Patented Inventions - May 25, 1907

  • Index of Inventions - May 25, 1907

  • New Books, Etc. - May 25, 1907

  • Notes and Queries - May 25, 1907

  • Patents - May 25, 1907

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May 25, 1907

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