Volume 108, Issue 21
You are currently logged out. Please sign in to download the issue PDF.
Features
A Telephone Transmitter without a Mouthpiece
The Anesthetizing Machine of Prof. Dubois, A New Theory of Sleep
Seeing Under Water
How Things Look From a Fish's Point of View By the Berlin Correspondent of the SCIENTIFIC AMERICAN
"Moon-Farming", Gold-tin Cans
Agriculture, Electricity and Irrigation
Intensive Farming Made Possible With the Electrically Driven Pump
Franklin Institute Treasures
Discovery of Keeley's Motor, the First Yale Lock, Franklin's Static Machine and Other Interesting Models in the Underground Storage Rooms of the Old Building
Improving a Harbor of Curaçao
One Effect of the Panama Canal's Completion