FOREST COMMISSIONER S REPORT. 



123 



The full results of this work will be found talnilated in the 

 appendix to this report. The upshot of it for present pur- 

 poses is embraced in the little table herewith presented. 

 This may ag'ain be condensed into the following: trees 

 between 12 and li inches in diameter grow at tho rate of 

 about 2 per cent com[)Ound interest; between 10 and 12 

 inches they make 2 1-3 percent; from 8 to 10 inches, about 



These tables are too instructive to let any opportunity go of pointing out the 

 things they show. Repetition is of no account alongside the possibility of failing 

 to drive home important principles. Seeliow the growth mounts up, as shown in 

 the last column, from nine to ten and eleven inches. Smaller than nine inches 

 trees produce comparatively little, after that point much more. It was inde- 

 pendently concluded, from observation in the woods, that it is at about that size 

 on the average that trees in uncut land rise above suppression of neighbors and 

 gain a full crown. Note too that the amount of growth keeps on rising as long as 

 we have record of it. In the fifty j^ears between nine and fourteen inches diame- 

 ter, trees grow more wood tlian in the 1.50 which it took them to reach that size. 

 Eight to ten inch trees stand to a crop of sprucelumber almost as a seed does 

 to a field crop. 



2.8 per cent. Another very handy figure is that for diame- 

 ter growth. In regard to this, we may say for short that 

 trees from 8 to 14 inches grow in diameter about one inch 



