Schuylkill River at Rockland Landing (Picturesque America)
Early photographs of Fairmount and vicinity, 1848
Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
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.
Requiem for a stream: Still House Run in Manayunk
Leverington Avenue Stormwater Sewer
Two reports on the state of the Schuylkill River, 1867
Streams, islands, and ferries of early Philadelphia
Mill Creek Sewer under construction, 1883