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Scientific American Magazine Vol 40 Issue 24

Scientific American Magazine

Volume 40, Issue 24

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Features

Opening of the Northeast Passage

Triumphs of Modern Engineering

Another Objection to the License System

How Coffee is Cleaned

Robert Crawshay

Molecular Chemistry.--No. III

The Gatling Gun

New Agricultural Inventions

New Hay Press

New Sample Case

Recent American Patents

Improved Snow Flanger

A New Condenser

New Pipe Cutting and Threading Machine

The Chameleon

A New Winged Projectile

Recent Mechanical Inventions

The Writing Telegraph

Recent Discoveries in Assyria

Wilson's “Horograph”, or Clockwork Pen

Communications Received

Departments

New Books and Publications

Business and Personal

Notes & Queries

Index of Inventions