Scientific American Magazine
Volume 22, Issue 15You are currently logged out. Please sign in to download the issue PDF.
Features
Mr. Bessemer's Conservatory
Bells and Bell Towers
Mineral Deposits
An Interesting Sketch of the Distinguished Aeronaut, John La Mountain
Hamilton's Water Elevator
Hill's Locking Whip Socket
Denn's Improved Gridiron and Cake Baker
The Bessemer Process Under Pressure
The Bitricycle, a French Invention
Galmann and Ruhe's Improved Joist Protector
Obituary--Seth Boyden
The Measurement of Water Power
Dualin--What is Claimed for It
Glazed Bricks for Building Purposes
Nature's Elevator
Michael Faraday
Patent Office Decisions- April 9, 1870
H. S. Patent Office- April 9, 1870
Recent American and Foreign Patents- April 9, 1870
Answers to Correspondents- April 9, 1870
Official List of Patents- April 9, 1870
Applications for Extension of Patents- April 9, 1870
Departments
Correspondence- April 9, 1870
Business and Personal- April 9, 1870
