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Features

Improved Hoisting Machinery

The Proposed Emasculation of the Patent Law

“Keramics” and Woman's Work

The Manufacture of Daubs

The Scientific Applications of Photography

English Car Trucks and Axles

Improved Lathe Chucks

The Gatling Gun Aloft

Communications

Improved Bale Tie

Improved Lubricator

Improved Scrubbing Machine

Astronomical Notes

By Berlin H. Wright

Spider Engineering

By M. Hopkins

The Algerian Palace at the Paris Exposition

Steam Power Moulding Machinery

Plant Mind III

Some Seasonable Hints on Plant Cultivation

Communications Received

Departments

  • Departments

    New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

  • Patents

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April 13, 1878

Complex Causes. Alternative Solutions.