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Pittsburgh and Connelsville Rail Road - p314
doi:10.1038/scientificamerican06261847-314s
Electro-Chemical Protection of Metals - p315
doi:10.1038/scientificamerican06261847-315c
Improvements in the Power of the Magnetic Telegraph - p316
doi:10.1038/scientificamerican06261847-316j
The Money Coined in the United States - p317
doi:10.1038/scientificamerican06261847-317h
Sudden Conversion of Iron into Steel - p317
doi:10.1038/scientificamerican06261847-317j
Remarkable Phenomena on the Black Sea - p318
doi:10.1038/scientificamerican06261847-318b
To Prevent Flies from Injuring Picture Frames - p320
doi:10.1038/scientificamerican06261847-320a
To Fasten Black Color on Cotton Goods - p320
doi:10.1038/scientificamerican06261847-320c
Old Musical Instruments Superseding the New - p320
doi:10.1038/scientificamerican06261847-320i