Rivers & Creeks Delaware River

Two views on the water supply, 1939

History of Belfield (1934)

The Water Supply Problem of Philadelphia, 1899

Color image showing lines drawn on grass, a road, a small underpass, trees and some caption text

Drawing Dock Creek (2008)

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page

Fairmount, bird's eye view from Lemon Hill (detail)

Fairmount Park, bird’s eye view from Lemon Hill, detail