Schuylkill River from below the South Street Bridge, 1873
Plan of Philadelphia, John Hills, 1796
Queen Lane Pumping Station, proposed design
Pennsylvania Railroad Bridge at Manayunk, about 1895
Gritty and the Phanatic in Ida’s Floodwaters
Plan of Pine Street Sewer, 1830
Mill Creek Sewer under construction, 1883
Fairmount Gardens with the Schuylkill Bridge, 1839
Fairmount Water Works, W.H. Bartlett, 1839
Fairmount Water Works and the Schuylkill River, 1838