Visionary planning report for Philadelphia region, 1928
The Water Supply Problem of Philadelphia, 1899
State of the Schuylkill River in 1876: Sewage pollution and possible remedies
The Water and Drainage History of Philadelphia: A seven-part course
Imagine a Day Without Water
Two reports on the state of the Schuylkill River, 1867
Half a Century of Clean Water
Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine
Duplex Pumping Engine, Belmont Works
Fairmount Water Works, about 1860