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Features

The Engineer Motor Car Competition

American Institute Fair

Fall of a New Building in New York City

National Electric Light Association

Charges against a Patent Firm

Another Transatlantic Steamship Service

The Aeroplane Flying Machine

By A. M. Herring

A Convenient Drill Case

An Improved Rock Drill

Improved Binding for Blank Books

The Lumiere Cinematograph Camera

Alvan Graham Clark

Third Rail Electrical Equipment of the New York, New Haven and Hartford Railroad

(Continued from Scientific American of June 12, 1897.)

The Mechanical Baseball Pitcher

To Inventors - June 26, 1897

Departments

  • Recommended

    New Books, Etc. - June 26, 1897

  • Departments

    Correspondence - June 26, 1897

  • Recently Patented Inventions - June 26, 1897

  • Business and Personal - June 26, 1897

  • Notes and Queries - June 26, 1897

  • Index of Inventions - June 26, 1897

  • Patents - June 26, 1897

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June 26, 1897

Beyond XX and XY

Beyond XX and XY

Biology. Identity. Equality.