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Estrade's High Speed Locomotive

Transformation of Physical Forces

Prof Pickering's Early Experiments in Telegraphing Sound

The Nation's Great Problem, How to Cool a Cellar, and more

Recently Proposed Patent Legislation

Progress of Silk Culture in this Country

Car Coupling

Shaving Mirror

Improved Hinge

Door Securer

Pneumatic Pressure Relief Governor

Water level Indicator

Collision Balls and Harmonic Impact

By T. O'Conor Sloane

Polarized Light.—Norremberg Doubler and the Study of Thin Films

By Geo. M. Hopkins

Thermometer with Electric Alarm

Winding Engine for Australia

Child's Carriage

Railway Cross Ties

Drain Tile Protector

Rare Specimens of Marmosets

Agricultural Inventions - July 17, 1886

Miscellaneous Inventions - July 17, 1886

Engineering Inventions - July 17, 1886


  • Letters

    Correspondence - July 17, 1886

  • Recommended

    New Books and Publications - July 17, 1886

  • Departments

    Notes and Queries - July 17, 1886

  • Business and Personal - July 17, 1886

  • Index of Inventions - July 17, 1886

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July 17, 1886

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