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Scientific American Magazine Vol 39 Issue 2

Scientific American Magazine

Volume 39, Issue 2

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Features

The Adams Gas Process

The Invention of the Microphone

Preparation of Iron Fuels

Millstones

An Hour with Edison

Unsinkable Steam Vessels

A Simple Fire Escape

Milk as a Substitute for Blood Transfusion

Lever and Cam Valve

An Ingenious Toy

Communication - July 13, 1878

The Etiology of Asiatic Cholera.--a New Theory

Bellerophon

Proposed Process for the Fixation of Atmospheric Nitrogen

John Blair

Improved Beehive

Cross' Improved Gas Condenser

Astronomical Notes - July 13, 1878

Berlin H. Wright

The Swiss House at the Paris Exposition

The St. Benoit Twins

The Leona Goat Sucker

Curious Hedge figures

Departments

Business and Personal - July 13, 1878

Notes and Queries - July 13, 1878

New Books and Publications - July 13, 1878

Index of Inventions - July 13, 1878