 
		 
		 
		Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
 
		Down Under, Part 2: Beaver Creek as it appears today
 
		Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
Belmont Works (1870)
 
		Twenty-fourth Ward (or West Philadelphia) Works, 1855
 
		Mill Creek Sewer under construction, 1883
 
		Thomas Run sewer outlet at Cobbs Creek
 
		Thomas Run sewer outlet during construction
 
		69th St. Sewer and Culvert across Lansdowne AVe.
