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The Pacific Railroad—Wall Street Intrigue - p74
doi:10.1038/scientificamerican11191853-74a
Extension of Patents, and Patent Law Suits - p77
doi:10.1038/scientificamerican11191853-77
American and European Naval Architecture - p80
doi:10.1038/scientificamerican11191853-80c
To Prevent Steam from Condensing in Pipes - p80
doi:10.1038/scientificamerican11191853-80e
