462 



Canadian Forestry Journal, November, 1919 



The thinning of a sample plot has as it.- ubj' ui Uil imi'' Mvement of the staul I ■ -; :i 

 least valuable trees are cleaned out so as to produce more favorable growin: 

 conditions for the remainder. The picture shows a plot at Petawawa 

 with thinning completed. 



md 



Working on the sample plots at Petawawa. Left to right: Lieut. D. A. Macdonald, A. H. T>. Ross 

 (a visitor), Frank Reynolds, Neil Chrystal (entomologist). H. Horton. H. C. Av'allin. 

 Seated: F. T. Jenkins and Captain A. Bentley. 



