Part III. - ). Beeson: Beehole Borer of Teak. 85 
A comparison of the arithmetic mean number of beeholes per girth- 
class in this table with those in Table 25 shows, that on the whole 
the trees without Stumps show a lower number of beeholes girth for 
girth than trees with stumps. This is to be expected from a considera¬ 
tion of the vertical distribution of beeholes in the tree. As will be seen 
from Table 35, page 98, the basal 3 feet of the tree in this plot 
contains on an average 14*5 per cent, of the total number of beeholes in 
the bole. 
Annual Incidence .—The ages of the beeholes in the 67 trees cut 
up were not determinable in all cases, particularly in very suppressed 
trees. Rejecting all doubtful datings, the annual frequency of the 
borer is shown by the data in the following 2 tables. Table 27 contains 
the results of 23 dateable trees with their stumps, and Table 28 the 
results of 21 trees without stumps. 
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