Info & Metrics PDF Article Information vol. 9 no. 4 93-98 DOI https://doi.org/10.48044/jauf.1983.024 Published By Arboriculture & Urban Forestry (AUF) History Published online April 1, 1983. Copyright & Usage © 1983, International Society of Arboriculture. All rights reserved. Author Information Harold L. RobsonDirector of Parks, Forestry and Public Works, The City of Lake Forest, 220 East Deerpath, Lake Forest, Illinois 60045 PDF PreviousNext