Improved Patent Stench Trap, Glycerine in Surgery, and more

The Whitworth Projectile

Valuable Receipts

Bond's Improved Tourniquet

Horse-Power

Reform These Abuses!

Rockets in Warfare

Sewing Machines in Europe

The Galvanic Action between Iron and Copper in Vessels

The New Canadian Patent Bill

Defectively-Designed Boilers

The Rebel Shot

Action of Sulphuric Acid Upon Lead

Patent Claims

Issued from the United States Patent Office

Recent American Patents

Discoveries and Inventions Abroad

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