Wissahickon Creek near the Paper Mill Bridge (Picturesque America)
Drive along the Wissahickon Creek Vallley (Picturesque America)
Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Queen Lane Pumping Station, proposed design
Dobson’s Mill, 1884, from History of Philadelphia by Scharf & Wescott
A Day in the Ma’sh – Bell Snicklin’
Apparatus for testing model turbine wheels used at Fairmount, 1859-60
Fairmount Water Works, about 1860
Charles Spencer & Co., Leicester Knitting Mills, Germantown, Philadelphia
Philadelphia Water Department Fire Hydrant