Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: AQUA, in the beginning
Map Lover’s Monday: Looking for Cleaner Water
Map Lover’s Monday: Fairmount Park, 1869
Ghosts of Water in Fairmount Park, Part II, with Adam Levine
Map Lovers’ Monday: 1891 Water Supply Plan
Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868
State of the Schuylkill River in 1876: Sewage pollution and possible remedies
Two reports on the state of the Schuylkill River, 1867
