Making It Safe to Drink: Water History Video 2
Bottled vs. Tap in 1906
The Water and Drainage History of Philadelphia: A seven-part course
PWD Drinking Water Treatment diagram
“Speeding the Parting Guest,” Feb. 25, 1909
“A Decidedly Mixed Drink,” April 6, 1899
Finished Upper Roxborough filters, 1903
McConnell Germ-Proof Filters ad
Water Before and After Roxborough