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Features

Freezing in Fire

Effects of Heat in the Comstock Mines

Protection from Lightning

Pushing an Iron Bridge Across a River

American Industries.--No. 21

The Elevated Railway Extension.--Details of Construction

Modification of the Reynier and Werdermann Electric Lamp

By Geo. M. Hopkins

The Blake Transmitter

Mechanical Inventions

A New Fish Way

Miscellaneous Inventions

Recent Decisions Relating to Patents, Trade Marks, Etc.

By Judge Wheeler

New Motor and Meter

Engineering Inventions

A New Wrench

The Great Sea Cow of Florida

By Daniel C. Beard

Arrow Poisons

Arabesque Cabinet

Communications Received

Departments

  • Departments

    Correspondence

  • New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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November 01, 1879

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