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Motors for Small Power

Mechanical Criticisms, Barbs in Beef, and More

Chemistry for Digestion

The Potato Rot

Boring Deep Wells by Water Pressure

The American Association for the Advancement of Science

By H. C. Hovey

Improved Rotary Plow

Tree Planter

Automatic Water Still

Circular Saw for Hot Iron

Luminous Attachment for Harness

Ear Trumpet and Cane Handle

"Storing Wind Power," Revised and Corrected

The University of Strasbourg

The First Electric Motor

Hammer-Headed Shark

Miscellaneous Inventions

Agricultural Inventions

Engineering Inventions

Mechanical Inventions

Communications Received


  • Departments


  • Index of Inventions

  • New Books and Publications

  • Notes and Queries

  • Business and Personal

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