Scientific American Magazine
Volume 17, Issue 23You are currently logged out. Please sign in to download the issue PDF.
Features
New Publications
The Celebrated Niagara Suspension Bridge
Money's Improvement in Umbrellas
The American Torpedo Boat of 1776
Recent American and Foreign Patents
Manufacturing, Mining, and Railroad Items
Answers to Correspondents
Morrison's Machine for Kneading Dough
Scale for Weighing Letters, Papers, Etc.
Roys' Application of Corrugated Iron
The Importance and Difficulty of the Puddling Process--Late Improvements in Mechanical Puddling
A Remarkable Summer Excursion
Patents in Canada to American Citizens
Patents and Claims
Pending Applications for Reissues
Extension Notices
Departments
Business and Personal
