Scientific American Magazine
Volume 100, Issue 13You are currently logged out. Please sign in to download the issue PDF.
Features
Rainmaking by Dynamite
The Highway and the Automobile
Close of the Fourth Dimension Contest
The Scientific American Flying Machine Trophy for 1909
Electricity - March 27, 1909
Science - March 27, 1909
Aeronautics
The Mercury Telescope
Superiority of Lock to Sea-Level Canal
Governmental Income and Outgo
The Navy's Dummy Drill Gun
The Ice of the Arctic Waters
Tobogganing at Caux, Switzerland
Apparatus for Treating Rubber
Valve for Flush Tanks
Adjustable Head for Piano Hammers
Engine Aliner
Patent Department - March 27, 1909
Improved Oar Lock
Oddities in Inventions
Pneumatic Milk Can
Kitchen Sink Cover
Reciprocity in Patent Laws
The German Crown Prince as an Inventor
Departments
Correspondence - March 27, 1909
Recently Patented Inventions - March 27, 1909
Notes and Queries - March 27, 1909
New Books, Etc. - March 27, 1909
Patents - March 27, 1909
Index of Inventions - March 27, 1909
