Scenes on the Wissahickon Creek (Picturesque America)
Plan of Philadelphia, John Hills, 1796
Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
The Schuylkill and Wissahickon banks in 1858
Centre Square Water Works, Drawings of Intake Basin
Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
Centre Square Water Works, Latrobe Plans, 1799
The Centre Square Works, 1801
