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Scientific American Magazine Vol 15 Issue 21

Scientific American Magazine

Volume 15, Issue 21

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Features

Improved Patent Barrel Machinery

Railway Engineering in London

Miscellaneous Summary

Machine Printing of Calico

The Most Useful of Trees

Signals on English Railway Trains

Fay's Improved Saw-Horse

Copartnership of Capital and Labor

Prevention of Boiler Explosions

Patent Claims

Departments

Correspondence

Notes and Queries

New Inventions