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Estrade's High Speed Locomotive

Transformation of Physical Forces

Recently Proposed Patent Legislation

Prof Pickering's Early Experiments in Telegraphing Sound

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

Progress of Silk Culture in this Country

Car Coupling

Improved Hinge

Shaving Mirror

Door Securer

Water level Indicator

Pneumatic Pressure Relief Governor

Collision Balls and Harmonic Impact

By T. O'Conor Sloane

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

By Geo. M. Hopkins

Winding Engine for Australia

Thermometer with Electric Alarm

Child's Carriage

Drain Tile Protector

Railway Cross Ties

Rare Specimens of Marmosets

Engineering Inventions - July 17, 1886

Agricultural Inventions - July 17, 1886

Miscellaneous 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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