Three reports on Philadelphia’s Sewage Treatment Project, 1911-1914
The Water and Drainage History of Philadelphia: A seven-part course
Down Under!
Streams, islands, and ferries of early Philadelphia
Dauphin and Sydenham car crash, Jan. 17, 1978
Half a Century of Clean Water
Thomas Run sewer outlet at Cobbs Creek
69th St. Sewer and Culvert across Lansdowne AVe.