Scientific American Magazine
Volume 4, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
The Baltimore Steam Battery
The War
Operations of the Secessionists
War and Inventions
Subjugation of the South
Derangement and Adjustment of Ships' Compasses
Allegiance
General James' Projectile
The People Govern
Fortress Monroe
Letter from our Washington House
History and Index of Articles on Implements of War, Rifles, Shooting, and Experiments in Gunnery, Published in the Scientific American
The Patriotic Contributions
To Our Readers
The Patent Office—Patent Claims
Calkin's Transparent Eye Shade or Occhiombra
Thayer's Improvement in Harvesters
Departments
Notes and Queries - May 25, 1861
