FORESTRY QUARTERLY 



BOARD OF EDITORS 

 B. E. Fernow, LL. D., Editor-in-Chief 



Henry S Graves. M.A., 

 Forester, U. S. Forest Service 



Raphael Zon, F. E., 



U. S. Forest Service 



Frederick Dunlap, F.E., 



University of Missouri 



T. S. WooLSEY, Jr., M.F., 

 Consulting Forest Engineer 

 Albuquerque, N. M. 



Ernest A. Sterling, F. E., 

 Consulting Forest Engineer, 

 Chicago, III. 



Clyde Leavitt, M. S. P., 

 Commission of Conservation, 

 Ottawa, Canada 



Filibert Roth, B.S., 



University of Michigan 



Hugh P. Baker, D.Oec, 



Syracuse University 



R. C. Bryant, F.E., 



Yale University 



Samuel J. Record, M.F., 



Yale University 



Richard T. Fisher, A. B., 



Harvard University 



Walter Mulford, F. E., 



University of California 



A. B. Recknagel, M.F., 



Cornell University 



C. D. Howe, Ph. D., 



University of Toronto 



J. H.White, M.A., B.Sc.F., 

 University of Toronto 



Asa S. Williams, F. E. 



P. S. Ridsdale, Business Manager 

 Washington, D. C. 



the objects for which this journal is published are: 



To aid in.the establishment of rational forest management. 



To offer an organ for the publication of technical papers of 



interest to professional foresters of America. 

 To keep the profession in touch with the current technical 



literature, and with the forestry movement in the United 



States and Canada. 



Manuscripts may be sent to the Editor-in-Chief at the Uni- 

 versity of Toronto, Toronto, Canada, or to any of the board of 

 editors 



Subscriptions and other business matters may be addressed to 

 Forestry Quarterly, 1410 H Street, N. W., Washington, D. C. 



NATIONAL CAPITAL PRESS. INC. 

 WASHINGTON, D C 



