GRIMM, Eric C., Dept Earth & Environmental Studies (Adjunct), University of Minnesota, Minneapolis, MN 55455, DONOVAN, Joe, Department of Geology and Geography (Emeritus), West Virginia University, 330 Brooks Hall, Morgantown, WV 26506, FRITZ, Sherilyn C., Earth and Atmospheric Science Department, University of Nebraska-Lincoln, 126 Bessey Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, BAKER, Paul, Division of Earth and Ocean Science, Duke University, PO Box 90228, Durham, NC 27708-0228, BROWN, Kendrick, Canadian Forest Service, Natural Resources Canada, Victoria, BC V8Z 1M5, Canada and MUELLER, Pietra, Springfield, IL 62704