Table of contents
May 3, 1862, Volume 6 No 18 (New Series) pp273-288
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Notes on Military and Naval Affairs - pp274 - 275
doi:10.1038/scientificamerican05031862-274
Polytechnic Association of the American Institute - p276
doi:10.1038/scientificamerican05031862-276
Manufacture of Armor Plates—Hammered and Rolled - p281
doi:10.1038/scientificamerican05031862-281
Photographing from Balloons in Military Reconnoissances - p281
doi:10.1038/scientificamerican05031862-281b
Testing the Strength of Electrical Currents - p281
doi:10.1038/scientificamerican05031862-281c
The British Parliament on the Fight in Hampton Roads - p282
doi:10.1038/scientificamerican05031862-282
Original Experiments with Superheated Steam - p283
doi:10.1038/scientificamerican05031862-283
