12 



(In the calculation of 2nd quality yield the antepenultimate class is left out 



of account.) 



, 13,175 + 5,731 18,906 



The annual yield of Matti, therefore, comes to r ^ 4Q 



472 stems, which is taken in round figures as 470. 

 The yield for Nana will be as follows : 



On 1st quality soil. 



' 11>05 3-(30 / + 5/ ) + i (7,262-(2C/ + 10/ ) ] =6,511. 



lOo 



On 2nd quality soil. 



11,053-(30/ + 5 %) + 7,262-(20 / + 10/ ) =2,822. 



6,511+2,822 9,333 _ 9 

 The annual yield of Nana, therefore, comes to- ^- -^- 



stems, which is taken in round figures as 230. 

 The yield for Kindal will be as follows : 



On 1st quality soil. 



ZL / S2,130-(30/ + 5/ ) + J (20,951-(207 + 10/ ) } = 18,904. 

 10U\ 



On 2nd quality soil- 



32 > 130_(30/ (> + 6/o) + 20,951-(20/ + 10/ ) J = 8,177. 



18,904 + 8,17 7 _ 27,081 _ 

 The annual yield of Kindal, therefore, comes to 4Q 4l> 



676 stems, which is taken in round figures as 670. 

 The yield of Jamba will be as follows : 



On 1st quality soil. 



T7_ f 1])658 _(30 / + 5/ ) + i (15,678-(20 e / + 10/ ) } = 7,948. 



On 2nd quality soil, 

 11>658 _ (3 0/ q + 5'/ ) + 15,678-(20/ + 10/ ) } =4,268, 



_ 



7,948 + 4,268_ 

 The annual yield of Jamba, therefore, comes to- ^~ 



304 stems, which is taken in round figures as 300. 



The total annual yield of the four species works out to : 

 Matti . 



. 



Kindal ... 67U 



Jamba ... 2 



Total ... 1,670 stems. 



52 The period during which the area will be worked over is 40 years. 



Owing to the irregular distribution of the species, not 



Period for which fellings on j j n re ] a ti n to their own units but also in rela- 

 aro prescribed. tion to Qne anoi ,her, it is necessary to group the 



fellings into sub-periods and nob to restrict the felling to a given number < 

 trees Ind to a given area in one year. Four years is taken as ^ e sub - fellm 8 

 period thus dividing the felling period of 40 years into 10 sub-periods. 



53 The areas to be worked over during each sub-period and the number 

 of trees' available forfeningjnjhe^ame^re^ven below ; 



