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Coins in the United States—Mint at Philadelphia - p66
doi:10.1038/scientificamerican11151851-66a
Fire Annihilator Experiments.—Tripler Hall Saved because there was no Conflagration - p66
doi:10.1038/scientificamerican11151851-66l
The New Motive Power—Centrifugal Force Stock - p69
doi:10.1038/scientificamerican11151851-69a
The Reason Why the Water of the Dead Sea is Unfitted to Support Life - p69
doi:10.1038/scientificamerican11151851-69b
Barnhill's Premium Apple-Paring Machines - p69
doi:10.1038/scientificamerican11151851-69g
The London Patent Journal on the Scientific American - p70
doi:10.1038/scientificamerican11151851-70
