Part IV.] Caccia : Selection method of treatment in India. 345 
are not sufficient data to decide this point, moreover increased success in fire- 
protection may lead to improvements in this direction. The girth can be 
reduced if found desirable when the prescribed revision in 16 years’ time is 
carried out. 
The number of fairly sound chit trees counted in the Cliil Circle is as 
follows : — 
I 
• 
28,41 3 over 
2' 6" 
diameter, 
II 
• 
• 
67,147 
2' 0" to 2' 6" 
If 
III 
• 
* 
134,804 
1' 6" to 2' 0" 
it 
IV 
• 
. 
160,306 
1' 0" to 1' 6" 
ty 
A considerable proportion of the lower classes have stopped growing and 
will never reach first class dimensions, while some of the third and fourth 
classes will be crowded out by the more vigorous growth of their neighbours. 
Again the success which may attend the fire-protective measures prescribed in 
this report is uncertain and the reproduction is not by any means assured. 
Under these circumstances and under instructions from the Inspector General 
of Forests, the annual capability has been fixed at the 1st class trees plus one- 
third of the 2nd class, or 3 , , „„„ , 
— 32 =1,587 or, say 1,600 trees. 
The figures at the beginning of this paragraph include all trees not actually 
dry, all green trees however branchy, damaged and irregularly grown, must be 
reckoned in the yield. 
The number of years taken by a 2nd class chil tree to become 1st class 
has been ascertained to be 32, and it is proposed to prescribe the felling of this 
species for that period. During this time the fellings will pass over the Circle 
twice. 
in the next place it may be interesting to study certain Working 
Example V. All Class I Plans for forests in which i of the Class 
trees plus ^ Class II trees. II trees are to be exploited during the 
period of the felling rotation. 
To cite the instance of the sal forests of the Debra Dun Division, 
United Provinces,* treated under the selection system — 
The present condition of the stock of trees in this forest cannot be taken 
as a criterion of what sal trees can grow to under improved conditions of pro- 
tection and management. Our knowledge, too, of the girth corresponding to 
commercial maturity is as yet imperfect, so that it would be inadvisable to 
adopt at present a. too rigid limit as to the size of maturity. A girth of over 
6 feet may however with safety be taken as the maximum size to which sal 
can be profitably grown, while it is probable that a considerable proportion of 
the stock may never attain this girth. Accordingly, it is broadly laid down 
that all sal and sein trees of_ over 6 feet girth may be considered fit for 
removal, as mature, and in addition such second class trees as are unsound or 
show signs of deterioration. 
* Working Plan for the Naini Tal Cantonment forests 
Provinces, by R. C. Milward and H. Jackson, 1903. 
Western Circle, United 
