Improved Horse Power, Mastodon Remains and more

The Law of Trade Marks in England

Asbestos Piston Rod Packing

[From the Engineer].

Effect of Animal Excreta in Water

Fall of the Roof of the Railroad Depot at Saratoga Springs

Harvesting Ice on the Hudson

Japan

Meeting of the Society of Arts of the Massachusetts Institute of Technology

Gerhart's Improved Wagon Brake

Quinby's Geometrical Arching Bricks

Substituting Other Vapors for Steam.--Ether and Bisulphide of Carbon

The Heating of Buildings by Steam

The Indirect Influence of Invention upon Manufactures, Arts and Commerce

Agricultural Chemistry and Chemical Manures

Short Extracts from a few Letters

Scientific and Practical Information - February 17, 1872

Will You Favor us?

A Good Month's Work

Recent American and Foreign Patents

How Shall I Introduce My Invention?