Item Types Document

Black-and-white image of a table with numbers in columns

Bacteria in Delaware River, Torresdale Filters, 1913

Black-and-white reproduction of the title page of an old periodical

A Day in the Ma’sh – Frontispiece

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

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

A list of rules governing the sanitary maintenance of privy vaults in Philadelphia in 1915

Privy Regulations