The Water Supply Problem of Philadelphia, 1899
State of the Schuylkill River in 1876: Sewage pollution and possible remedies
Plan of Pine Street Sewer, 1830
Mill Creek Sewer under construction, 1883
Half a Century of Clean Water
‘Gillette, All By Himself, Gets Fine New Idea On Germ Slaying’
Outhouse over the Schuylkill near Pottstown
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
