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Joseph Rothrock
The Teacher and the Forest: the Pennsylvania Forestry Association, George Perkins Marsh, and the Origins of Conservation Education
Pennsylvania Forestry Association News You Can Use
PART II PERSONAL PAPERS and ORGANIZATIONAL RECORDS Allen, Paul Hamilton, 1911-1963 Collection 1 RG 4/1/5/15 Photographs, 1937-1959 (1.0 Linear Feet)
University of Georgia Historic Contexts
P Ennsylvania Forests
Oral History Interview with GEORGE H
PPFF Sp2013 Nwsltr.Qxd
Pennsylvania Magazine of History and Biography
Level Playing Fields: the Democratization of Amateur Sport in Pennsylvania
Penn's Stewards, Spring 2006
No. 1 July 11, 1972
Objects of the Green-Wood Cemetery (New York: Narine and Company, 1839), 18
Pennsylvania Conservation History Annotated Bibliography
Archival Sources for Pennsylvania Conservation and Environment History
The Hemlock 7.2 (Spring 2014) Page
Using the Environmental History of the Commonwealth to Enhance Pennsylvania and U
The Conservation Movement in Pennsylvania: Developing a Historic Context and Guidelines for Evaluating State Forests and Parks
A Timeline of Environmental History
Top View
Joseph Trimble Rothrock and the Formation of the Forestry Movement in Pennsylvania, 1839–1922
Volume XXV No. 1 Jan-Feb 2011