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Features

The Pneumatic Dispatch

Miscellaneous Summary

Diffusion Process for Extracting Sugar

Ellerbe's Transplanting Implement

Gleanings from the Polytechnic Association

Government Gas Lighting

Pitezels Excelsior Clamps

Lehman's Improved Stop Cock

Conversion of Wooden Ships

Breech-Loading Arms for the Government

Recent American and Foreign Patents

Answers to Correspondents

Important Law Case--Fire-Proof Safes

Extension Notices

Advertisers

Corrosion of Steam Boilers

Drainage and Utilizing Waste of Cities

Condition of the Patent Office

The Scientific American Office

Photogram

Patent Claims

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January 05, 1867

Music's Mysterious Power

Music's Mysterious Power

Emotional. Cognitive. Therapeutic.