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Features

Improved Single-Needle Knitting Machine, Period of the Growth of Man

Editorial Correspondence

A New Theory of Chemistry--The Galvanic Battery Dissected, and Speculations Concerning Ozone

Editorial Summary

Meyer's Safety Saddle

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Progress of the Pacific Railroad--The System Adopted for Laying the Track

Answers to Correspondents

Extension Notice

Science Familiarly Illustrated

White's Improved Monkey Wrench

American Institute Fair

The Relative Economy of Anthracite and Bituminous Coal in Steam Boilers

The Largest Pair of Propeller Engines in the World

Malleable Qualities of Lead

Official Report of Patents and Claims

New Publications

Pending Applications for Reissues

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November 02, 1867

Reanimate Your Brain

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