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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

The Government Experiments in Working Steam Expansively

Recent American Patents

New Books and Publications

Miscellaneous Summary

Car Springs

English Estimation of Our Monitor System

The Pitches of Screw Threads

Simmering

Our Next Volume

Grumblers

Patent Claims

Patents Granted for Seventeen Years!

Departments

  • Departments

    Correspondence

  • Notes and Queries

  • Index

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June 25, 1864

See the World from a Different Perspective

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