Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
Cobbs Creek in the Days of the Old Powder Mill
Smith’s and Windmill Islands
High Water: Flooding in Philadelphia
Visionary planning report for Philadelphia region, 1928
Imagine a Day Without Water
The Sad History of Frankford Creek
Watersheds: Learning to care for and protect our local water resources
Fairmount Gardens with the Schuylkill Bridge, 1839
Fairmount Water Works from the forebay, 1833