U7 



(iv) Forecast of condition o/^rops at the expiry of fell- 

 ing period. — It will generally be advantageous to forecast the 

 condition of the crop at the expiry of the period for which the 

 fellings are prescribed. The condition aimed at would of 

 course be in accordance with the purpose with which the 

 forest is worked ; and the mere formulation of the anticipated 

 condition would also serve to illustrate and explain, bettor 

 than anything else, the nature of the fellings to be made and 

 the immediate object sought in making them. Again, in the 

 case of a forest worked by the selection method, where as a 

 result of enumeration surveys the possibility has been fixed 

 by number of trees, the forecast would give an estimate of 

 the number of trees, which may be expected to. be found 

 in each girth class at the end of the period for which the 

 fellings are prescribed. 



^*a»»p/e.— At the conclusion of tbe felling period, it JB hoped that not only will 

 all ansoaiid timber, during and OTermatare trees, but also all langnishiug and badly 

 grown trees of Class II, have disappeared, and that they will have been replaced by 

 sound vigorous well-grown trees, ana the total nnmber of trees with a girth over 6 

 feet will be at least as well represented in namber as at the beginning of the period. 



Or, in Tihe case of a selection forest in which enumeration snrveys have been carried 

 out, the following forecast might be given :— 



It has been shown that at the end of the first period 148,444 trees would have 

 become exploitable and if the annual yield be fixed at 3,800, only 

 114,000 trees will be removed, so that at the end of the first period, 

 assuming that 26 per cent, of the Class Y teak survive, the crop should 

 be composed as follows : — 



Nnmber of trees. 



Class I, 148,441—114,000 . 31,44t 



„ II, (Vx 68,602 +13X129, 65 2 84,819 



„ III, i|x 129.652 + 15x108,239 136,442 



„ IV, is X 108,239 + 15x48,897 63,474 



Except in the case of Class IV trees this is ample to maintain the yield and it is 

 hoped that byiudioions assistance to natural regeneration the deficiency in the 

 seedling class may be made up nnd their growth accelerated so that there will be 

 no difficulty in maintaining the yield at the figure above fixed throughout the whole 

 rotation or even at an increased figure. 



10. Snppleiiientary regulations.-— There are two classes of 

 works of improvement, namely, those which are so connected 

 with the method of treatment that they may be considered 

 as special to the working-circle, and those which are common 

 to the whole area dealt with in the Report. 



Thinnings and cleanings, the re-stocking of blanks and 

 the introduction of superior species into the crop obviously 

 belong to the former category ; and grazing, although it may 



• The time repaired ttt pass from 1| to 3 feet girth, 



K 2 



