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Features

Foot Power Band Saw

Shoe Stretcher

Kindling Wood Splitter

Photograph Portraits--An Improvement

The Eye and the Sun

The Doctors and the Apothecaries

Steam as a Fire Extinguisher

Artificial Fertilization

Traction Engines or Road Locomotives

The Signal Service Bureau

The Balance Wheel Question

Silvering Glass

Recent Discoveries in the Pyramids

Professor Tyndall's Sixth and Concluding Lecture in New York

A Simple Photometer

Astronomical Notes

Plumbago, Black Lead, Graphite

Combination Grinding Machine

Improved Self Car Coupler

The New St. Thomas' Hospital

English Agricultural Implements

Recent American and Foreign Patents

Answers to Correspondents

Communications Received

Departments

  • Departments

    Correspondence

  • New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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February 08, 1873

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