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Features

Present Conditions at Panama

Denatured Alcohol Freed from Taxation

The Rapid Transit East River Tunnel Defects

Recent Experiments in the Preservation of Meat

Lecture-Room Boomerang

A Unique Vacuum Apparatus

A New Compound

The Brierley Fog-Signaling Apparatus for Railroads

By the English Correspondent of the Scientific American

The Excavation for the Pennsylvania Railroad Station, New York

Apparatus for Viewing Diffraction Color Photographs

Water Sterilization

By Alfred Gradenwitz

Through a Window of the Sea

By Charles Frederick Holder

Thomas A. Edison Automobiling to the South

Business and Personal Wants

Departments

  • Departments

    The Heavens in June

  • Correspondence

  • New Books, Etc.

  • Index of Inventions

  • Recently Patented Inventions

  • Notes and Queries

  • Patents

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June 02, 1906

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