%eadnotat; ]> Overlease, William Roy, 1925- Checklist of rare and extinct native plants of the Wissahickon valley, 1959. Phillips Academy of Natural Sciences of Philadelphia Text converted and initial EAD tagging provided by Apex Data Services, March 2001. ENG Overlease, William Roy, 1925- Checklist of rare and extinct native plants of the Wissahickon valley, 1959. Phillips Academy of Natural Sciences of Philadelphia 1963 Descriptive Summary Collection 451 Archives of the Academy of Natural Sciences

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OVERLEASE, WILLIAM ROY, 1925- Check list of rare and extinct native plants of the Wissahickon Valley, 1959. Typescript 1 item. Collection 451

Education director and student botanist, [UNK] prepared this list from an annotated unpublished file by John M. Fogg, Jr., and with the help of E. G. Wherry and Bayard Long, using the Academy's herbarium. Four copies were made and distributed to Fogg, Wherry, Bayard Long and the Comstock Society of Philadelphia.

Gift of Bayard Long, January 8, 1960.

Coll. 451-453