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Features

Improved Beater Hay Press, A New Alloy, Split and Sawed Shingles

Utilization of Waste Products, The Way to Make an Eolian Harp

Improved Evaporator, The Iron-Clad Steamer Tonawanda

Recent American Patents

New Books and Publications

The Government Experiments in Working Steam Expansively

Miscellaneous Summary

Car Springs

English Estimation of Our Monitor System

Simmering

Grumblers

Our Next Volume

The Pitches of Screw Threads

Patent Claims

Patents Granted for Seventeen Years!

Departments

  • Departments

    Correspondence

  • Notes and Queries

  • Index

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The Essential Guide to the Modern World

The Essential Guide to the Modern World