Bridge Street Draw, April 19, 1896. [Detail of men]
Bridge Street Draw. View of old draw removed, looking north. April 19, 1896. [Detail]
Bridge Street Draw. General view of old draw, ca 1896
Centennial Exhibition situation plan, 1876
69th St. Sewer and Culvert across Lansdowne AVe.
Outhouse over the Schuylkill near Pottstown
Engine House of the Belmont Works
Fairmount Water Works, about 1860
Diagram showing the daily pumpage for the year 1877
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
