Part I.] 
Troup : Teak Forests of Burma. 
27 
Yoma, and which resemble each other topographically, have been 
grouped together, because the figures in each individual reserve are 
hardly sufficient to give reliable results. 
The following table gives the results obtained with regard to the two 
forest tracts mentioned above :— 
Kale Working Circle. 
Pyinmana Reserves. 
Order, as 
regards 
rate of 
Mean 
Annual 
Number 
of stumps 
Mean 
Annual 
Number 
of stumps 
growth. 
Aspect. 
girth in¬ 
crement 
(inches). 
on which 
countings 
were made. 
Aspect. 
girth in¬ 
crement 
(inches). 
on which 
countings 
were made. 
1 
N. 
•510 
32 
N. 
•568 
48 
2 
S. W. 
•479 
24 
S. E. 
•557 
33 
3 
w. 
•477 
36 
N. E. 
•541 
26 
4 and 5 
C N. W. 
•463 
40 
1 E ' 
•534 
49 
i E. 
•463 
37 
(*N. W. 
•534 
24 
6 
N. E. 
•461 
25 
W. 
•530 
60 
7 
S. 
•459 
19 
S. W. 
•525 
14 
8 
S. E. 
1 
•454 
28 
s. 
•501 
55 
It will be seen that although the fastest growth takes place on north¬ 
ern aspects in both tracts and the slowest on general southerly aspects, 
there is not sufficient similarity between the results exhibited in the two 
tracts to afford any reason for generalizing. 
It is noteworthy, however, that in the Kale Working Circle the fastest 
growth takes place on general northerly and westerly aspects, the easterly 
and southerly aspects showing slower growth. In the Pyinmana forests, 
on the other hand, the fastest growth takes place on northerly and east¬ 
erly aspects, and the slowest on southerly and westerly aspects. 
Although the geology of the two tracts is similar in general (sandstone 
with occasional beds of clay or conglomerate), they are totally different 
as far as topography is concerned. In the Kale working circle the main 
hill ranges run north and south, the strata dipping to the east, with the 
result that the western faces of the hills form steep escarpments and the 
[ 27 ] 
