Scientific American Magazine
Volume 4, Issue 23You are currently logged out. Please sign in to download the issue PDF.
Features
Machine for Making Sisal Hemp, On Filtration—A New Medium
Change of Mail Day
The War
Ames's Patent Index Door-Plate
Letters from the South
Look Out! Look Out!!
Cochran's Corrugated Ring or Cup Projectile
Armstrong Guns Denounced—Breech-Loading Cannon
Experiments with Cannon and Shot
Who Began the War
Recent American Inventions
Patent Claims - June 8, 1861
Hall's Drinking Tube
Departments
Correspondence - June 8, 1861
Notes and Queries - June 8, 1861
