The Parsonsburg Sand in the Central Delmarva Peninsula, Maryland and Delaware; United States Geological Survey Professional Paper 1067-B
Washington: United States Government Printing Office, 1979. softcover, 11" x 8.5", 16 pages. from the title page, "Sandy and peaty sediments suggest that the climate of the Delmarva Peninsula was cooler and drier during the late Wisconsin than it is at present." More



