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Worssam's Timber Sawing Frame

Improved Bridge

Machines at the Fair which have been Illustrated in the Scientific American

British Association for the Advancement of Science

New Locomotive

Steam an Extinguisher of Fire

Clock-work for Fastening Locks of Doors, Safes,Vaults, &c

Drilling Machine

Locks for Safes, &c

Grain Separator

Improvement in Iron Stairs

The Fair of the American Institute

Firemen on Steamships

Portrait of Washington

Hydraulic Rams

Artificial Hydraulic or Portland Cement

Iron Lighthouses

Bellville and Illinoistown Railroad

Scrofula and Pork

Gold in New Zealand

Bell's Reaping Machine in America

The Ship Challenge

Bomerang Propeller

What is to be Done with all the Gold

Proceedings of the French Academy of Sciences

Panama Railroad


Back Numbers and Volumes

Patent Claims

Patent Laws, and Guide to Inventors

Cheap Postage—Important to Subscribers



Human Fat Candles and Soap

The Purifying of Wine

The Harlem Railroad Tunnel

An Excellent Tooth-Powder

What is Heat?

An Unrighteous Act

Heat for Propelling Ships


  • From the Editor

    To Correspondents

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