1. Lessons from Soggy Leaves: A Pre-Settlement Flora from White Clay Creek, Chester County, Pennsylvania Open Access Author: Grettenberger, Christen Lynn Title: Lessons from Soggy Leaves: A Pre-Settlement Flora from White Clay Creek, Chester County, Pennsylvania Graduate Program: Geosciences Keywords: fossil leavesHolocenesubfossil florapaleontology File: Download thesis-full-July-26-2011-1.pdf Committee Members: Peter Daniel Wilf, Thesis Advisor/Co-AdvisorPeter Daniel Wilf, Thesis Advisor/Co-Advisor