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Features

Bayliss's Improved Tweer Iron

Improved Steam Boiler

Fogs, Clouds, and Rain, in the Mountains

The Cultivation and Uses of Forest Trees

The McCall and Sloper Process for Preserving Fresh Meats

American Institute--Polytechnic Branch

The Law of Mariotte--Its Relations to the Liquefaction of Gases

Area of Steam Ports

Miscellaneous Summary

Wellington's Patent Water Closet

Bring Out Your Inventions

The Value of a Scientific and Mechanical Journal

No. 1 Advertisers

Expiring Subscriptions

Important Suggestions

Improved Pier and Warehouse System for New York

Patent Claims

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December 22, 1866

Think Outside the Gift Box