 
		 
		 
		Drive along the Wissahickon Creek Vallley (Picturesque America)
 
		Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
 
		Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
 
		Plan of Philadelphia, John Hills, 1796
 
		Girard Avenue Bridge, Fairmount Park, 1895
 
		Queen Lane Pumping Station, proposed design
 
		Photos from the Philadelphia Anglers’ Club
 
		Centre Square Water Works, Drawings of Intake Basin
 
		Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
 
		Centre Square Water Works, Latrobe Plans, 1799
