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Features

A Steam Supply from Combined Locomotives

Recent Progress in Soil Analysis

An Astronomical Lantern

An Improved Fruit Jar Clamp

A Bulletproof Door and Window Shield for Mail and Express Cars

A Double Rotary Toy Windmill

A Ribbon Substitute for Bicycle Chains

Redrawing of Wrought Iron Tubes

Relics of a Cuban Insurrection

The Annealing of Armor Plates by Electricity

By W. W. Hanscom

The Casseuil Drawbridge

The Fountain at Geneva

To Inventors - July 6, 1895

Departments

  • Letters

    Correspondence - July 6, 1895

  • Recommended

    New Books and Publications - July 6, 1895

  • Departments

    The Heavens in July - July 6, 1895

  • Recently Patented Inventions - July 6, 1895

  • Notes and Queries - July 6, 1895

  • Business and Personal - July 6, 1895

  • Index of Inventions - July 6, 1895

  • Patents - July 6, 1895

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July 06, 1895

Beyond XX and XY

Biology. Identity. Equality.

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