Scientific American Magazine
Volume 90, Issue 9You are currently logged out. Please sign in to download the issue PDF.
Features
Salt Water Fire Protection for New York City
Emission of N-Rays by the Human Body, Especially the Muscles and Nerves
The Proposed Naval Appropriation
Electricity in Mines
Fleets in the Far East--An English Review of the Position of Russia and Japan
Submarine Sound Telegraphy
Novel Appliances for Fighting Fire
A Powerful Compressed Air Clamp
Safety Hook Provided with Counting Mechanism
Modern Flour Milling
The Disabled Russian Cruiser "Novik."
The Parasite of the Oak Pruner
Early Armorclads
Business and Personal Wants
Departments
Science Notes - February 27, 1904
Legal Notes - February 27, 1904
Notes and Queries - February 27, 1904
Recently Patented Inventions - February 27, 1904
Index of Inventions - February 27, 1904
Patents - February 27, 1903
