 
		 
		 
		Ghosts of Water in Fairmount Park, Part 1, with Adam Levine
 
		Plans and maps of the Pennypack Creek Watershed in Philadelphia
 
		History of Belfield (1934)
 
		Frankford Creek Watershed Historical Timeline
 
		Drawing Dock Creek
 
		Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
 
		Sewers, Pollution, and Public Health in 19th Century Philadelphia
 
		Dock Creek Sewer in 1849: A report on its condition made to City Councils
 
		Drainage and Sewerage Report, 1853
 
		The Water and Drainage History of Philadelphia: A seven-part course
