 
		 
		 
		Schuylkill River from below the South Street Bridge, 1873
 
		Philadelphia from Belmont, West Park (Picturesque America)
 
		Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
 
		Schuylkill River from below the South Street Bridge, 1873
 
		Plan of Philadelphia, John Hills, 1796
 
		Centre Square Water Works, Drawings of Intake Basin
 
		Centre Square Water Works, Latrobe Plans, 1799
 
		Gritty and the Phanatic in Ida’s Floodwaters
 
		Plan and profile of proposed Delaware Seventh St. Sewer, 1850
 
		Fourth of July, Centre Square, ca. 1812
