Volume 26, Issue 3
You are currently logged out. Please sign in to download the issue PDF.
Features
Pooley's Automatic Grain Weigher
Hydraulic Cements--Their Adaptability for Useful and Ornamental Purposes
A Paper, read before the Polytechnic Association of the American Institute by Adolph Ott. PART II.
Friction Gearing Versus Belts and Cog Wheels
Mineral Waters
The Allegheny Observatory
The Attraction of the Moon
The Modern Theory of Heat Applied to the Phenomena of Latent Heat, Combustion, Etc.
Expose of the Tricks of the Davenport Brothers
Sterhydraulic Apparatus
Lewis' Twine Cutter
Poisoning by Antimony.--The Wharton Trial
What is a Machine?
Health and Disease
Artificial Fuel
The American Master Mechanics' Association
The Agassiz Exploring Expedition--Interesting Results Already Obtained
The Study of Alloys
To City Subscribers - January 13, 1872
Applications for Extension of Patents
Loiseau's Compressed Fuel
Hall of the Franklin Institute, Philadelphia, December 19, 1870.
Recent American and Foreign Patents
Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.