Volume 95, Issue 26
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Features
The President's Message on the Panama Canal
Catechism of a Scientist
William Henry Welch
The New Lusol Lamp
The "Unilens" a Novel Form of Telescope
By the English Correspondent of the Scientific American
A Simple Experimental Dynamo
The Solution of New York's Transportation Problem
The Apparatus of the United States Life-Saving Service
Eye-Spotting in Nature
Increasing the Power of a Talking Machine by Means of Compressed Air
Business and Personal Wants
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