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Features

New Dynamite Gun

"A Possible Revolution in Medicine"

Dogs that Learn Trades

An Improved Churn

Simple Experiments in Physics

By M. Hopkins

An Improved Extension Ladder

An Improved Steam Steering-Gear

The Garabit Viaduct

Offset Mechanism for Sawmill Carriages

A Simple Device for Threading Needles

Test of the Cast Steel Breech Loading Rifle

Gigantic Fossil Mammals

To Inventors- December 29, 1888

Departments

  • Recommended

    New Books and Publications- December 29, 1888

  • Departments

    Recently Patented Inventions- December 29, 1888

  • Business and Personal- December 29, 1888

  • Notes and Queries- December 29, 1888

  • Index of Inventions- December 29, 1888

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December 29, 1888

Complex Causes. Alternative Solutions.

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