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Edison's Megaphone

A Chance for Inventors

American Inventions in Bavaria

The Delaware Ship Canal

Edison and the Unseen Universe

The New Patent Law of Spain

Local Encouragement of Manufactures

Improvements Needed in Salt Making

Independent Workers

A Curious Insect

The Study of Real Life in Schools

The Eclipse. — A Note From Professor Mitchell

Photographic and Other Views of the Eclipse

Further Evidence of Atlantis

New Trace and Pad Buckle

Quick Speed Hand Drill


Files and Rasps

Folding Shaving Horse

A Simple Phonograph

Paris Exhibition.--The Italian Facade

Wood's Lap Ring

Astronomical Notes

By Berlin H Wright

New Tin Roving Can

Oliver's Screw-Headed Key

Communications Received


  • Departments

    New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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August 24, 1878