Scientific American Magazine
Volume 63, Issue 4You are currently logged out. Please sign in to download the issue PDF.
Features
Experiments with the Sims-Edison Torpedo
The Gypsy Moth in Massachusetts
It Pays to Advertise in the Scientific American
An Improved Umbrella or Parasol Exhibitor
An Improved Screen Attachment for Windows
An Improved Surveyor's Instrument
Bolt Threading Machine
An Improved Block and Clevis for Log Wagons
An Improved Blasting Car
An Improved Adjustable Axle Nut
A Hand Rest for Penmen
An Improved Folding Table
The Chicago
Redwood Logging In California
The Scientific Use of the Phonograph
A Wrinkle in Sawing
Departments
Correspondence- July 26, 1890
Notes and Queries- July 26, 1890
Business and Personal- July 26, 1890
New Books and Publications- July 26, 1890
Recently Patented Inventions- July 26, 1890
To Inventors- July 26, 1890
Index of Inventions- July 26, 1890
