
Volume 39, Issue 12
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Features
The Origin of American Mechanical Genius
Mental Experimenting
The Utilization of Weeds
The British Association
The Imagination in the Constructive Arts
The Bag-Worm's Mother
Senate Bill No. 300
The Dynamometer of the Great Captive Balloon at the Paris Exhibition
Sheaf Binding
Gang Plow Trials-Paris Exhibition
Notes of Patent Law
Decisions of the Courts