Volume 6, Issue 27
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Features
Machine for Sticking Pins Into Paper
Cumberland Mountain Tunnel
The Blue Ridge Tunnel
Foreign Correspondence
Liabilities of Railway Companies in England
New Process of Daguerreotyping
Soundings Obtained at Sea
Steamboats, Railroads and Telegraphs
Restoration of Sight
To Clean Rusted Iron Work
New Swingle-Tree for Carriages
Balloon Navigation
Improved Grain Drill
Notice
New and Ingenious Tooth Puller
The Largest Edition Yet
Depilatory Powders
Cast Iron Pavements
Steam versus Stame as a Propelling Power
Business in the Patent Office
Steamboat Boiler Bursting on the Western Waters
Back Numbers and Volumes
List of Patent Claims
Errata—Patent Claims
A Sofa Made Of Coal
Mechanics
Inventors and Manufacturers