Northern Liberties and Spring Garden Water Works
Apparatus for testing model turbine wheels used at Fairmount, 1859-60
Duplex Pumping Engine, Belmont Works
Engine House of the Belmont Works
Electric Pump Installations at Lardner’s Point Pumping Station
Fairmount Park, bird’s eye view from Lemon Hill, detail
“Philadelphie,” Bird’s Eye View, 1855
Bird’s eye view of Delaware River and Philadelphia, about 1840
Sketch of aquarium in former FWW building, interior, ca. 1950
View from the Inclined Plane near Philadelphia, 1838
