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Features

A New Switch Controller

Citric Acid-From the Lime and Lemon

The Tide Water Oil Pipe Line Completed

Six Months of Scientific Progress

Improvement in Sugar Manufacture

Insects as Medicine

The New Steamship Arizona

The Brewers' Convention

The Australian Exhibitions

The Krupp Electric Lamp

A New Invalid Bed

New Shop Saw

Amateur Mechanics

Easily Made Slide Best

Miscellaneous Inventions

Recent Mechanical Inventions

A New Rotary Engine

Fastening and Releasing Device for Cattle Stalls

The Cyclodes

A New Sounder

The Electric Pen

New Agricultural Inventions

An Old Concern Re-Established

Communications Received

Departments

  • Departments

    Notes and Queries

  • New Books and Publications

  • Business and Personal

  • Index of Inventions

  • Patents

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June 28, 1879

Think Outside the Gift Box