Philadelphia College of Pharmacy and Science. 1936. "A survey of the springs of Fairmount Park and the Wissahickon Valley. " Typescript and photographs. By Philadelphia College of Pharmacy and Science, 1936. Includes photocopies of the 1936 survey and photographs, negatives, maps, notes and lists of capped springs from a subsequent survey, 1935-1936, 1958-1961, Shelf: 3. Books and Bound Manuscripts, FP.2016.004. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/13773 Accessed July 27, 2025.