Table of contents
May 19, 1860, Volume 2 No 21 (New Series) pp321-336
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Improved Boat-Lowering Detaching Attaching and Griping Apparatus - pp321 - 322
doi:10.1038/scientificamerican05191860-321
The Hexagonal Cell of the Honey-Bee - p326
W. J. Weeks, By
doi:10.1038/scientificamerican05191860-326b
Polytechnic Association of the American Institute - p327
doi:10.1038/scientificamerican05191860-327a
The Increase and Improvement of Steamships - p329
doi:10.1038/scientificamerican05191860-329
Applications for the Extension of Patents - p336
doi:10.1038/scientificamerican05191860-336c