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Features

American Industries, No. 34

THE MANUFACRURE OF PUNCHING AND DRAWING PRESSES, DROP HAMMERS, DIES, ETC.

Who Shall Hold the Surplus?

Regulation of Shifting River Channels

The Drive Well in New York City

Ferdinand De Lesseps and the Chagres Canal

Improved Mould for Sewer Building

A New Fruit Drier

Improved Roller Gate

Novel Method of Carpeting Stairs

A Novel Small Motor

New Gas Saver

Cheap Spectroscope

Agricultural Inventions

Improved Controlling Valve for Engines

New Potato Digger

The Leaf Mormolyce

Natural History Notes

The Condition of French Workmen

Improved Cam for Stamp Mills

Electric Lamp Tests

Communications Received

Departments

  • Departments

    Business and Personal

  • Notes and Queries

  • Index of Inventions

  • New Books and Publications

  • Patents

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