Scientific American Magazine
Volume 39, Issue 2You are currently logged out. Please sign in to download the issue PDF.
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
Proposed Process for the Fixation of Atmospheric Nitrogen
Improved Beehive
Cross' Improved Gas Condenser
Astronomical Notes - July 13, 1878
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
