Lighthouses along the Delaware, 1913
Torresdale Water Works (1907)
From Creek To Sewer
Lardner’s Point Pumping Station (1902)
Delaware and Kensington Works (1851-1890)
Frankford Pumping Station (1877)
The Water Supply Problem of Philadelphia, 1899
Dauphin and Sydenham car crash, Jan. 17, 1978
Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Cohocksink Sewer System outlet at Laurel Street
