Scientific American Magazine
Volume 63, Issue 2You are currently logged out. Please sign in to download the issue PDF.
Features
Ammonia
The Chicago World's Fair
A Summer School of Biology
Trade Mark Decisions
An Improved Safety Latch for Elevator Doors
An Imitation Baseball Game
A New Plating Dynamo
An Improved Fruit Picking Stand
An Improved Log Loading Machine
An Improved Automatic Regulator
An Improved Header Brake
An Improved Gravity Hoist
An Improved Stone Polishing Machine
An Improved Dental Tool
An Improved Mail Pouch Catcher
Home Made Ornaments
The Sodom and Bog Brook Reservoirs in the Croton Basin, N. Y.
The New Merchants' Bridge at St. Louis
Manufacture of Condensed Milk in Switzerland
Burrowing Sea Urchins
Photographic Notes- July 12, 1890
Scientific American Building Edition- July 12, 1890
Departments
Recently Patented Inventions- July 12, 1890
Business and Personal- July 12, 1890
Notes and Queries- July 12, 1890
New Books and Publications- July 12, 1890
Index of Inventions- July 12, 1890
