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Features

Robert Crawshay

Another Objection to the License System

Opening of the Northeast Passage

How Coffee is Cleaned

Triumphs of Modern Engineering

Molecular Chemistry.--No. III

New Agricultural Inventions

The Gatling Gun

New Hay Press

Improved Snow Flanger

New Sample Case

Recent American Patents

A New Condenser

New Pipe Cutting and Threading Machine

The Chameleon

Recent Mechanical Inventions

A New Winged Projectile

The Writing Telegraph

Wilson's “Horograph”, or Clockwork Pen

Recent Discoveries in Assyria

Communications Received

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    Notes & Queries

  • Business and Personal

  • New Books and Publications

  • Index of Inventions

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June 14, 1879

Complex Causes. Alternative Solutions.