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Features

Improved Automatic Churn, Effect of the Removal of Forests

Railway Engineering in London

Miscellaneous Summary

The Origin and Composition of Peat

American Institute--Polytechnic Branch

Myer's Drawer Knob

The Great Iron Belt

Rehorn's Patent Sadiron

A Very Eminent Officer of the United States Navy on Iron-Clads

Ventilation of the National Capitol

Important to Advertisers

Patent Claims

Wolfenden's Universal Box for Turning Lathes

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  • New Inventions

  • Notes and Queries

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December 01, 1866