Item Types Document

Two views on the water supply, 1939

Girard Avenue Bridge, Fairmount Park

Girard Avenue Bridge, Fairmount Park, 1895

The Water Supply Problem of Philadelphia, 1899

Black-and-white image of the title page of a government report

Perkiomen Water Supply Surveys, 1866

Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia

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

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

Frank Leslie's Illustrated Weekly, 1869, Schuylkill flood, 1869

Leslie’s Illustrated Newspaper, Schuylkill Flood 1869