Places Pennsylvania

Schuylkill River watershed, population in 1904

Aqueduct carrying sewer over Creishem Creek, in the Wissahickon Valley, 1892

Cresheim Aqueduct

Diagram and description of the typhoid bacteria

Typhoid bacteria diagram, 1905

A section of wooden water pipe, long out of service, removed from a Philadelphia street in 1901. It had been installed about 1801.

Wooden Water Pipe, removed from Market Street, December 6, 1901

Philadelphia the Manufacturing and Industrial Capital map, 1906

Oak Lane Reservoir pipeline, 1904

Oak Lane Reservoir pipeline, 1904

Upper Roxborough filter beds

Upper Roxborough filter beds under construction, July 1902

Samuel H. Ashbridge, former Mayor of Philadelphia

Portrait of Samuel H. Ashbridge, Mayor

Nine visiting nurses ready for work, ca. 1909

Nine visiting nurses ready for work, ca. 1909

Spring Garden water testing lab, 1901

Bureau of Water Spring Garden Testing Station, 1901

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

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

Two bottles of water from a river, one dark with pollution and one clear after filtration

Water Before and After Roxborough