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Commander Cheyne's Lectures

Water Fuel on a Locomotive

The Relation of Agriculture and Manufactures to Population

The Acme of Misinstruction

The National Academy of Science

Engineering Inventions

New Galvanometer

Improved Pick

How Kid Leather is Prepared

Combined Lock and Reversible Latch

Improved Damper

Electricity by Magnetic Induction

By Geo. M. Hopkins

Miscellaneous Inventions

Steam Boiler Notes

Novel Grate-Bar

Novel Ticket Reel and Receptacle

Improved Twisting Reel

Mechanical Inventions

The Great Sunfish

By A. W. Roberts

Communications Received


  • Departments


  • Recent Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • New Books and Publications

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December 03, 1881

20% Sitewide for President's Day