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Moustache Spoon

Improved Canal Boat

Iron Minium

Report of the Secretary of the Interior

Report of the Secretary of the Navy

Further Extracts from Professor Tread-Well on Hooped Cannon

Report of the Secretary of the Treasury

Chemicals Lectures by Prof. Doremus

Special Notice

Miscellaneous Summary

Lunkenheim's Globe Valve

Making Molasses From Corn

What Can be Done for Inventors--Advice Gratis and Advice for Pay

What Can be Found in the Scientific American

Boiler Explosions No Mystery

Prosperity of the Woolen Manufacture


Fessenden on the Currency

Recent American Patents

Patent Claims


  • Departments


  • Notes and Queries

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