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The Hydromotor

Water for Industrial Uses in New York

The Sydney Exhibition

Conspiracies to Nullify the Patent Laws

The Temperature of Water Supply

Extraction of Oils by Means of Solvents

Rosset's Clock

Mechanical Inventions

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

By Alfred M Mayer

A New Drag Sawing Machine

A New Fire Escape

Miscellaneous Inventions

New Calculating Attachment for Weighing Scales

The Otocyon

Natural History Notes

Recent Agricultural Inventions

French Faience

The Baneful Effects of Absinthe

Communications Received


  • Departments

    New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

  • Patents

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