 
		 
		 
		Water Bureau Newspaper Scrapbook, 1942-1952
 
		Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1992
 
		Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
 
		Centre Square Water System
 
		Centre Square Water Works, Drawings of Intake Basin
 
		Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
 
		Centre Square Water Works, Latrobe Plans, 1799
 
		Two reports on the state of the Schuylkill River, 1867
 
		Fairmount Water Works, W.H. Bartlett, 1839
 
		Perkiomen Water Supply Surveys, 1866
