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Special Correspondence of the Scientific American - p322
doi:10.1038/scientificamerican06281851-322
Great Improvement in the Piano Forte—Piano, Flute, and Viol all Combined - p324
doi:10.1038/scientificamerican06281851-324
Libbey's Leather Car for raising Hides from Vats - p324
doi:10.1038/scientificamerican06281851-324b
Improved Machine for Punching Leather Hose, Harness, &C - p324
doi:10.1038/scientificamerican06281851-324d
Currents of the Ocean—Pendulum Experiments - p324
doi:10.1038/scientificamerican06281851-324e
New Rate of Postage—Important Information for the Subscribers of the Scientific American - p324
doi:10.1038/scientificamerican06281851-324g
The Recognition of Genius and the Industrial Principle - p325
doi:10.1038/scientificamerican06281851-325
Cast Iron Buildings—Crystal Palace - pp325 - 326
doi:10.1038/scientificamerican06281851-325c
