Table of contents
March 9, 1861, Volume 4 No 10 (New Series) pp145-160
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Self-Propelling Rotary Steam Plow - pp145 - 148
doi:10.1038/scientificamerican03091861-145
The New President and the Commissioner of Patents - p153
doi:10.1038/scientificamerican03091861-153
The Report of the Commissioner of Patents - pp153 - 154
doi:10.1038/scientificamerican03091861-153b
The Polytechnic Association of the American Institute - pp154 - 155
doi:10.1038/scientificamerican03091861-154
