Volume 64, Issue 14
You are currently logged out. Please sign in to download the issue PDF.
Features
A Propelling Mechanism for Vehicles
A Readily Applied Car Replacer
A Quilter for Sewing Machines
An Improved Wrench
Fireproof Partition Walls
A Mechanical Stoker
A Tool Holder for Lathes, Planers, Etc.
The Patent Centennial
Optical Projection of Opaque Objects
A SuccessfuI Life
To Inventors
Advertisements- April 4, 1891
Inside page, each insertion — 75 cents a line
Back page, each insertion — $1.00 a line
Useful Books!– April 4, 1891
The Scientific American Publications for 1891- April 4, 1891
Experimental Science- April 4, 1891
The Scientific American Established 1846- April 4, 1891
The Most Popular Scientific Paper in the World