Schuylkill Navigation lock at Fairmount (Picturesque America)
Scenes on the Wissahickon Creek (Picturesque America)
Wissahickon Creek near the Paper Mill Bridge (Picturesque America)
Drive along the Wissahickon Creek Vallley (Picturesque America)
Map Lovers’ Monday: 1891 Water Supply Plan
Down Under, Part 2: Beaver Creek as it appears today
Bottled vs. Tap in 1906
Typhoid Fever and sewage tainted drinking water: An 1889 report from the Philadelphia Board of Health
Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
Schuylkill Navigation Company Scrapbook