Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine
Captain Sewer and Michael Nutter, 1998
Bureau of Water Spring Garden Testing Station, 1901
Engine House of the Belmont Works
Fairmount Park, bird’s eye view from Lemon Hill, detail
Sketch of aquarium in former FWW building, interior, ca. 1950
New Mill House at Fairmount
Leslie’s Illustrated Newspaper, Schuylkill Flood 1869
Baldwin Locomotive Works