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Improved Patent Stench Trap, Glycerine in Surgery, and more

The Whitworth Projectile

Valuable Receipts

Bond's Improved Tourniquet


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

To Our Readers


  • Departments


  • Notes and Queries

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