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The Hydromotor

Conspiracies to Nullify the Patent Laws

Water for Industrial Uses in New York

The Temperature of Water Supply

The Sydney Exhibition

Extraction of Oils by Means of Solvents

Mechanical Inventions

Rosset's Clock

Practical Experiments in Magnetism, with Special Reference to the Demagnetization of Watches.—No. 3

By Alfred M Mayer

A New Fire Escape

Miscellaneous Inventions

A New Drag Sawing Machine

Natural History Notes

The Otocyon

Recent Agricultural Inventions

New Calculating Attachment for Weighing Scales

French Faience

The Baneful Effects of Absinthe

Communications Received


  • Departments

    Business and Personal

  • Notes and Queries

  • New Books and Publications

  • Index of Inventions

  • Patents

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October 11, 1879