Scientific American Magazine
Volume 26, Issue 17You are currently logged out. Please sign in to download the issue PDF.
Features
Endless Traveling or Railway Sidewalk, The Crystallization of Metals and more
The Electro-Magnetic Telegraph
Important Trade Mark Decision
Professor Morse
Frictional Gearing - April 20, 1872
Measuring the Clearness of the Sky
Scientific and Practical Information - April 20, 1872
Clothes Line Reel
Gibbs' Whiffletree
An Improved Grafting Tool
Winn's Shampooing Apparatus
The Relation of Science to Religion
Drying by the Direct Application of Heat-Distillation
Piston Rod Packing
Beet Sugar in the United States
The Advance in the Price of Iron
Steam on the Erie Canal
Recent American and Foreign Patents - April 20, 1872
Departments
Correspondence - April 20, 1872
Business and Personal - April 20, 1872
Notes and Queries - April 20, 1872
Answers to Correspondents - April 20, 1872
New Books and Publications - April 20, 1872
Index of Inventions - April 20, 1872
