Schuylkill River from below the South Street Bridge, 1873
Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
Schuylkill River from below the South Street Bridge, 1873
Plan of Philadelphia, John Hills, 1796
Drawing Dock Creek
Dock Creek Sewer in 1849: A report on its condition made to City Councils
Visions of the Schuylkill, 1884 and Now
Centre Square Water System
Centre Square Water Works, Drawings of Intake Basin
