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Cholera and Some Indications for its Management

Progress of the Cholera


New Mathematical Instrument

A Simple and Efficient Typewriter

An Improved Nut Lock

An Improved Speed Indicator

Position of the Planets in October

Military Ballooning

A Long Distance Transmission Plant between Tivoli and Rome

Reynaud's Optical Theater

The Pipa Americana


  • Letters

    Correspondence- October 1, 1892

  • Recommended

    New Books and Publications- October 1, 1892

  • Departments

    Recently Patented Inventions- October 1, 1892

  • Business and Personal- October 1, 1892

  • Index of Inventions- October 1, 1892

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