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