Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
Ghosts of Water in Fairmount Park, Part II, with Adam Levine
Plan of Philadelphia, John Hills, 1796
Wingohocking Sewer across Penn St.
Map of Frankford Borough, 1845
Girard Avenue Bridge, Fairmount Park, 1895
Map Showing Districts, Boroughs & Townships Incorporated in Consolidation of Philadelphia in 1854
Philadelphia Navy Yard, July 1872
Diagram from sewage treatment plan for Philadelphia, 1912
Queen Lane Pumping Station, proposed design