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    Features

    Double Tenoning Machine, Mammoth Remains

    Another Phase of the Vienna Exposition

    The Physical Condition of the Planets

    The New Ocean Telegraph Cable

    The Geographical Work of the World in 1872

    The Fly Wheel.--Exact Formulas by Which to Proportion It

    Scientific and Practical Information - May 10, 1873

    The Problem of the Coming Transits

    The Ornamental Use of Metal

    Stevens Institute Lectures.--Moonlight and its Source

    By Henry Morton

    The Wonders of the Egg.--Second Lecture

    Chemical Notes

    The Tay Bridge

    A Patent Cannon Plow

    Astronomical Notes - May 10, 1873

    Decisions of the Courts

    Recent American and Foreign Patents - May 10, 1873

    Answers to Correspondents - May 10, 1873

    Best Mode of Introducing New Inventions

    Communications Received - May 10, 1873

    Departments

    • Departments

      Correspondence - May 10, 1873

    • New Books and Publications - May 10, 1873

    • Notes and Queries - May 10, 1873

    • Business and Personal - May 10, 1873

    • Index of Inventions - May 10, 1873

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    May 10, 1873