Table of contents
April 9, 1864, Volume 10 No 15 (New Series) pp225-240
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Combined Atlas and Blackboard, Ventilating Ships, and more - pp225 - 226
doi:10.1038/scientificamerican04091864-225
Polytechnic Association of the American Institute - p228
doi:10.1038/scientificamerican04091864-228a
How Sugar is Made from the Cane - pp228 - 229
doi:10.1038/scientificamerican04091864-228b
Valuable Work for Inventors Patentees and Manufacturers - p239
doi:10.1038/scientificamerican04091864-239
The Cheapest Mode of Introducing Inventions - pp239 - 240
doi:10.1038/scientificamerican04091864-239a
Improved Rotary Harrow, Improved Box Plane - p240
doi:10.1038/scientificamerican04091864-240