Fairmount Water Works (Picturesque America)
Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
Schuylkill River from below the South Street Bridge, 1873
Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
You would not have wanted to drink it: Philadelphia’s water supply in 1884
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
Plan of Philadelphia, John Hills, 1796
Wingohocking Sewer across Penn St.
Queen Lane Pumping Station, proposed design
