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New Meridian Circle

A New Method of Locating Lightning Rods

A Subject for Investigation

Dragon Flies

Labor at Home and Abroad

Nordenskjold's Expedition

The American Onion-Smut in France

The Holly System of Steam Heating

Miscellaneous Inventions

Lock Letter Press

Improved Steam Whistle

Improved Portable Railroad Lock

Novel Work Table Implement

Improved Straw Cutter

Recent Mechanical Inventions

The Flying Dragon

Molecular Chemistry--No. 5

Engineering Inventions

Recent Decisions Relating to Patents, Trade Marks, Etc.

Communications Received


  • Departments


  • Notes and Queries

  • Business and Personal

  • New Books and Publications

  • Index of Inventions

  • Patents

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