Table of contents
April 28, 1860, Volume 2 No 18 (New Series) pp273-288
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The Blandy Portable Steam Engine - pp273 - 274
doi:10.1038/scientificamerican04281860-273
Polytechnic Association of the American Institute - p274
doi:10.1038/scientificamerican04281860-274
American Telescopes—The Twist in the Grain of Trees - p275
doi:10.1038/scientificamerican04281860-275b
A Cheap Fishing-Net Machine Wanted - pp278 - 279
doi:10.1038/scientificamerican04281860-278d
Interesting From Washington—Patent Law Discussion - p281
doi:10.1038/scientificamerican04281860-281a
