Hupy, Joseph P.1; Schaetzl, Randall J.2
1Department of Geography, 117 Perrson Hall, Colgate University, Hamilton, NY 13346-1398.Dr. Hupy is corresponding author. E-mail: [email protected]
2Department of Geography, Michigan State University, East Lansing, MI.
Received Feb. 21, 2006; accepted May 23, 2006.