The ecology of Center City, Philadelphia (in case you didn’t know there was any)
Requiem for a stream: Adams Run in Oak Lane
Smith’s and Windmill Islands
Cobbs Creek: A Brief Historical Overview by Adam Levine
High Water: Flooding in Philadelphia
Visionary planning report for Philadelphia region, 1928
The Water and Drainage History of Philadelphia: A seven-part course
Streams, islands, and ferries of early Philadelphia
Fairmount Gardens with the Schuylkill Bridge, 1839
“Town street scavengers from life,” Kollner, 1844