Water Department Newsletters, 1959-1997
Water Bureau Newspaper Scrapbook, 1942-1952
Map Lovers’ Monday: Circles of Destruction
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: AQUA, in the beginning
Map Lovers’ Monday: Philadelphia Geology, 1881
Buried Treasures No. 2: Williamson Bros. Company
Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania
