Fairmount Water Works and the Schuylkill River, 1838
Fairmount and vicinity, 1839
Isometrical View of Fairmount Water Works, 1843
Fair Mount Water Works engine house, 1819
Centre Square Engine House, ca. 1807
19th century life in South Philadelphia’s marshland
Diagram Showing Decreased Amount of Dissolved Oxygen in Delaware River, 1913
Thomas Run sewer outlet at Cobbs Creek
Thomas Run sewer outlet during construction
Delaware River at Arch Street from the New Jersey side, 1914