Scientific American Magazine

Great Western Railroad of Canada

Great Railroad Engineering

Submarine Explorer

Ohio and Pennsylvania Railroad

Patent Centre-Board

Pittsburg and her Railroads

New Comet

Boats on the Erie Canal

Coal for Locomotive Engines

Prizes Awarded

New York Exhibition

Petition for Extension of Patent

Steamboats on the Pacific

Recent Foreign Inventions

Shingle Machine

Demonism on Railroads

Discovery of Coal in Oregon

Decision under the Patent Laws

Suspension Bridge in New Brunswick

Screw vs. Paddle

Colt's Revolver Claimed to be an English Invention

Paris Artesian Well

Manufacture of Fire-Arms—Springfield Birmingham

Improvement in Horse Powers

New Electro-Magnetic Engine

Improved Railroad Truck

Kossuth

Improved Machine for Cutting Sash and Mouldings

Ontario and Huron Railroad

Improvement in the treatment of Calf Skins during the Process of Tanning

White's Improved Lathe

Transfusing of Blood

The America

Improvement in Burglars Alarm

Borax

Mournful Accident

Chemistry

The Hillotype

To Inventors

Improvement in

List of Patent Claims

Funnels of Steamships Affecting Compasses

An Important Paragraph

Sending Receipts—Postage on Books

Back Numbers and Volumes

Scientific Memoranda

Volcanic Eruption in the Sandwich Islands

To Mechanics

On Boilers--No.2

To Correspondents