Volume 12, Issue 17
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Features
Asphaltum Pavements
To Make Collodion
Martin's Self-Weighing Cart
Blue Varnish
List of Patent Claims
Important Notice
Terrestrial Magnetism
Heating the Feed Water of Steam Engines
Patent Case--Heavy Damages
The Compass on Iron ships
A Search for Readers of Scientific Works
New Improvement Wanted for Saw Mills
Improvement in Molding and Shaping Metals
Increasing the Density of Colors
Patent Extension
Food--Philosophy--Bread
Award of Prizes
The Woodworth Ogre Again--Lobbyists
Important From Washington--Another New Patent Bill Before Congress
Finale of the Woodworth Patent
Preservin Timber
Improvement in Constructing and Working of Locomotives
Liquid Stone
Mechanics
Inventors, and Manufacturers