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Features

Road Improvement

Position of the Planets in March

An Improved Wood Bending Machine

An Improved Dental Plugger

A Silk Spinning Spindle Support

Indoor Curling

New Electrical Governor

How to Take Silver Stains Out of a Gelatine Negative

By J. V. Drake

Magnitude of Molecules and Light Waves

By Morton

The Transportation of Petroleum

Professor Joseph Lovering

A Bamboo Bridge in Sikkim, India

Departments

  • Letters

    Correspondence- February 27, 1892

  • Recommended

    New Books and Publications- February 27, 1892

  • Departments

    Recently Patented Inventions- February 27, 1892

  • To Inventors- February 27, 1892

  • Business and Personal- February 27, 1892

  • Index of Inventions- February 27, 1892

  • Notes and Queries- February 27, 1892

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February 27, 1892

Think Outside the Gift Box