I wish to thank Wulf Killmann, Director, Forest Products and Economics Division; Olman Serrano, Senior Forestry Officer, Forest Products Service, and Jim Carle, Senior Forestry Officer, Forest Resources Development Service, Forestry Department, for their technical guidance during the preparation of this working paper.
Additionally, I wish to thank the Forestry Library Staff for access to reference documents during research for the working paper, and to Michèle Millanès for her editorial skills.
Professor Richard Jagels
University of Maine
Department of Forest Ecosystem Science
Orono, Maine 04469
USA
