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Map
A map.
Schuylkill River watershed, population in 1904
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Fairmount Park topographical map, showing East Park Reservoir, 1872
Plan of Philadelphia, John Hills, 1796
Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine