Topics Landscape Changes

A Brief History of Water in Northwest Philadelphia

Ghosts of Water in Fairmount Park, Part 1, with Adam Levine

Birkinbine Schuylkill Hydrographical Survey 1861-66

Two reports on the state of the Schuylkill River, 1867

Duplex Pumping Engine, Belmont Works

Duplex Pumping Engine, Belmont Works