Table of contents
December 15, 1860, Volume 3 No 25 (New Series) pp385-400
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The Two Principal Rules in Horse Back Riding - p385
doi:10.1038/scientificamerican12151860-385b
Atmospheric Circulation and Aepial Navigation - p386
doi:10.1038/scientificamerican12151860-386a
Improving the Mississippi-One Hundred Million of Dollars Added to the Value of the State - p387
doi:10.1038/scientificamerican12151860-387
Licensing for Selling Patent Rights, & C.—Laws of Virginia - p387
doi:10.1038/scientificamerican12151860-387b
English Rogues and Their New York Brethren - p390
doi:10.1038/scientificamerican12151860-390b
Spontaneous Generation of Plants and Animals - p392
doi:10.1038/scientificamerican12151860-392a
What Will be the Effect upon Patents in Case of Secession? - p393
doi:10.1038/scientificamerican12151860-393a
What Will Become of the Patent Office if the Union is Dissolved? - p393
doi:10.1038/scientificamerican12151860-393c
