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Scientific American Magazine Vol 21 Issue 1

Scientific American Magazine

Volume 21, Issue 1

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Features

A One-Needle Family Knitter, Determinations of Free Oxygen, and more

Facts About Gas for the People

Skill, Invention, and Property in Patents and Books

Horace Greeley

Rockwell's Overdraw and Compression Bit

Adjustable Spirit Level Plumb and Inclinometer

Improved Horseshoe Clincher

Improvement in Window Sashes

Cornish Pumping Engines

H. P. M. Birkinbine

The Claims of Genius

Property in Patents and Copyrights

Cheap Iron Fences

Architectural Engineering

Death of a Distinguished Editor

Testing Steam Engines

New Publications

The Present Status of Medical Science

Recent American and Foreign Patents

Answers to Correspondents

Official List of Patents

Applications for Extension of Patents

Departments

Correspondence

Business and Personal