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Features

The Latest British War Ships

The Normal Concert Pitch

Single Lipped Drills

Another Telephone Decision

House Knowledge for Boys

Device for Feeding Air to Furnaces

Improved Cable Grip

Improved Funnel

Automatic Rocking Cradle

Telephone Apparatus for Military Purposes

The Liquefaction of Oxygen

The Smallest Firing Revolver

Towel Rack

Fastening for Freight Car Doors

Loose Pulley Lubricator

Electric Fan

The Great Blowers of the Denain and Anzin Forges

Gigantic Flowers

Agricultural Inventions - July 18, 1885

Engineering Inventions - July 18, 1885

Miscellaneous Inventions - July 18, 1885

Departments

  • Recommended

    New Books and Publications - July 18, 1885

  • Departments

    Business and Personal - July 18, 1885

  • Notes and Queries - July 18, 1885

  • Index of Inventions - July 18, 1885

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July 18, 1885

Beyond XX and XY

Biology. Identity. Equality.