Part II.] 
Caccia : Development of Sal. 
131 
done. It is essential that one or more sample plots should be laid out 
in each reserve under systematic working. Great care should be exer- 
cised in the selection of the type trees to be measured ; and the con- 
ditions under which these are growing should be clearly indicated. 
The following table contains a list of all existing Sal sample plots, 
maintained by. the Forest Department in the Bengal Presidency with 
the object of determining the rate of girth increment : the results of 
measurements so far recorded being also entered.* 
*It must be confessed that many of the sample plots have not been well chosen : man.v 
of the selected trees now being measured have ceased to lay on a normal girth increment 
owing to accidents or to their complete suppression. The figures given are therefore 
open to revision. Moreover in only few instances have the trees grown up under pro- 
tection, or under normal conditions of leaf canopy. 
