P ART X.] Troup : Teak Forests of Burma . 11 
bearing ” forest is itself a somewhat elastic term, for the teak may be 
found in isolated patches or single trees widely separated by forest of a 
similar type containing no teak, but the whole may nevertheless be 
classed as “ teak-bearing ” because it is more or less homogeneous and 
is of a type capable of producing teak. Again, as in the case of some of 
the plains forests—the Rangoon Plains forests, and the Tonkan and 
Thindawyo reserves, for example—the teak is found only in certain parts 
of the area, and yet 4 4 teak-bearing 5 ’ forest is not separately classified 
because the forests are not considered primarily as teak forests. 
From what has just been stated, it will be seen that too strict a 
comparison between the statistics furnished 
statistical information. by the various wor king-plans, so far as the 
teak growing-stock is concerned, is liable to be misleading. Statistics 
regarding the growing-stock of forests under working-plans are furnished 
in Appendix II, where the average teak growing-stock per 100 acres 
has been worked out for all the forests in which working-plans enumera¬ 
tions have been carried out. 
from three different points of 
view 
(2) Number of teak trees per unit of area. 
It will be convenient, for our purpose, to consider the richness of the 
various teak forests from three different 
Richness of forest judged points of view, namely, (a) Forests rich in 
large teak trees, (6) Forests rich in teak 
trees 3 feet in girth and over, and (c) Forests 
rich in small-sized teak, below 3 feet in girth. Perhaps the safest 
general criterion for judging the richness of teak forests is to consider 
the total number of sound trees 3 feet in girth and over per 100 acres, 
because the enumeration of smaller-sized trees, as mentioned above, is .not 
usually reliable, while a comparison based on large trees only is unsafe, 
in that some forests, otherwise rich, have been depleted of a considerable 
proportion of their larger trees. 
(a) Forests rich in large-sized teak .-Of all the teak forests in Burma 
of which the growing-stock has hitherto been estimated, the Mohnym 
reserve in the Katha Division easily heads the list so far as richness in 
large trees is concerned. This reserve contains considerable stretches of 
practically pure teak forest in which the trees attain large , 
this type of forest is shown in Plate VI, while the Frontispiece shows 
one of the tallest teak trees met with in the reserve. 
r in 
