Hæmatinone

Oil vs Hydropathy

New Prospectus

Of The Scientific American Volume Thirteen to Mechanics, Manufacturers Inventors and Farmers

An Interesting Patent Decision

The Hoosic Tunnel

Franklin Institute

Wrecks on the Bahamas

Velocity and Colors of Lightning

Sugar and the Sorghum

Pearl Muscles

New Sloop of War

Does Sunshine Tend to Extinguish Fire?

Castor Oil

Amylene, the New Anæsthetic Agent

Hewit's Pump

Use of Strychnine in Distilleries

Steam Wagon

Relation of Inventions

Propellers

Printing Textile Fabrics by Light

Fifteen Hundred Dollars in Prizes

The Failure of the Atlantic Cable

The End of Our Twelfth Year

Testimonial to Miss Maria Mitchell

Secretary Thompson and the Patent Office

Polytechnic College

Gas Light on Steamers

Air Brake for Cars

Sewing Machine Suit in Great Britain

Salt and Its Properties

Great Cotton Factories

Coating Articles of Iron with Metallic Alloys

Correspondents

Special Notices-Important to Everybody

Index

Sheple's Winnowing Machine

Sugar Maples

The Woodworth Planing Machine