Features
Boring in Hard Rocks
Scouring Castings of Iron.--Coating with Zinc
A Man of Science Gone
Coal of Recent Formation
Straining Saws by Atmospheric Pressure
The Patent Office Once More-Defence of the Secretary of the Interior
Durability of Iron Ships
Lanterns for Lighthouses
Benefits of the New Steamboat Law
List of Patent Claims
Great Ocean Steamers
Military Literature--America Ahead
New England Industrial Exhibition
Barlow's Planing Machine.--Erratum
Recent Foreign Inventions
The Yellow Fever
Mechanics Institute
California Minerals
National Agricultural Exhibition
Important to Mechanics.--Woodworth's Planning Machine
Improved Gang Saw Mill
The Woodworth Patent Again
Great Fair of the American Institute
Reminiscences of the Paris Industrial Exhibition No. 4
Splendid Cash Prizes!
Correcting the Mariner's Compass
Improvement in Cotton Gins
Departments
- Letters
To Correspondents
