Diagram showing heights of reservoirs, dams, standpipes &c, 1894
Diagram showing heights of Reservoirs, Dams, Standpipes, &c, Department of Public Works, Philadelphia, Sept 12th 1894, Martin Murphy, Del. Bureau of Water, John L. Ogden, Chief Engineer.
Showing Chestnut Hill Tank, New Roxborough Reservoir, Roxborough Reservoir, Roxborough Standpipe, Belmont High Service, Mount Airy, proposed Green Lane Dam in Perkiomen, Queen Lane, Belmont, Wentz Farm, Corinthian, Fairhill, Schuylkill, East Park Fairmount, Fairmount Dam, and Flat Rock Dam.