87 



In order tbat the capital bLouM be oonititnted in the manner required, it would 

 be neceasary at the first operation to fell and reserve, on an average per aore of the 

 conpe I— 



Of Class I trees ; to fell 2 trees ; reserre i < '■ trees. 



M II >» l> 11 >» l» t , « 17 n 



II III n n „ » '• • • 17 II 



I, IV I, I, 15 ,1 I) at* 118 „ 



There wonld he reserved of Clae>s IV 118 trees, instead of 108, to make np for the 

 deficient nnmher of trees reserved in Class III. 



It need hardly be said that, when a mixed crop is dealt 

 with, the felling of each species should not be separately 

 prescribed as has been sometimes done in Indian working- 

 plans. At most the relative proportion of each kind should 

 be prescribed. This " storeyed forest " method of treatment 

 has been seldom described, though it has been largely 

 applied in certain parts of France. . It is stated to be parti- 

 cularly wellsuited to hill forests, in which the uncovering 

 of the soil leads to a dense growth of forest weeds and thus 

 prevents reproduction. 



Section VIIL— The working scheme and the calctt- 

 iiation oe the possibility rnder the method op 

 selection fellings. 



1. Tlie general working scheme,— The method of selection 

 fellings consists in felling here and there, as they are found 

 growing and according to certain cultural rules, such of the 

 exploitable trees as it is calculated will not exceed the pos- 

 sibility of the forest. Theoretically, every acre of a selec- 

 tion-worked forest should be felled over each year ; but, as 

 the trees felled would be so scattered that it would often not 

 be profitable to remove them, it is usual to fell over a 

 portion of the area each year and thus work over the whole 

 area in a given period, or felling rotation, at the end of 

 which the portion first ivorked is again taken in hand. The 

 working-plan thus prescribes the number of years in which 

 the whole area is to be worked over, that is, the felling 

 rotation; the area which is to be worked each year, or 

 during a short period of years ; and it limits the quantity of 

 material to be removed, annually or periodically, to the total 

 production over the whole area during the year or period 

 concerned. 



Thus the working-plan might be to the effect that eaoh year there will be felled 

 by the selection method, on one-tenth of the area of the forest, snoh and such a 

 number of trees. 



