Map Lovers’ Monday: Philadelphia Topography
Birch’s Views of Philadelphia, 1800
Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
From Creek To Sewer
The Sad History of Frankford Creek
Two reports on the state of the Schuylkill River, 1867
Mill Creek Sewer under construction, 1883
Fairmount Water Works, W.H. Bartlett, 1839