16 
Indian Forest Records. 
[Yol. YI 
( 
Summary of results of measurements in Divisional Sample Plots. 
Species— Shorea robtjsta— contd. 
Assam Province ; Eastern Circle } Darrang Division. 
Sample Plot. 
Gorumara reserve. 
Balipara reserve. 
Plots combined. 
Thinned or Unthinned. 
Unthinned. 
Unthinned. 
Unthinned. 
Descriptive details . 
1 
Ground level. Soil 
sandy loam wi th a 
layer of humus. Trees 
of fair growth ; crop 
open. 
Ground level. 
Soil sandy loam. 
Subsoil sandy. 
Crop complete over most 
of the area; in other 
parts scattered. 
Growth—average. 
Period of measurement 
1908-1914 
1908—1914 
1908—1914 
Total number of measurements. 
143 
237 
380* 
Kate of growth in girth. 
Age in years. 
Ft. 
in. 
Ft. 
in. 
Ft. 
in. 
20 
0 
0 
41 
0 
4 
30 
0 
H 
0 
8 
0 
7| 
40 
0 
91 
0 
HI 
0 
101 
50 
1 
Of 
1 
3 
1 
2 
60 
1 
4£ 
1 
6| 
1 
51 
70 
l 
8 
1 
9| 
1 
9 
80 
1 
HI 
2 
H 
2 
1 
90 
2 
4 
2 
2 
5 
100 
2 
8| 
2 
10 
2 
91 
no 
3 
1 
3 
3 
3 
2 
120 
3 
6 
3 
8 
3 
7 
130 
3 
11 
4 
1 
4 
0 
140 
4 
4 
H 
4 
51 
150 
4 
m 
5 
0 
4 
HI 
160 
5 
5 
• • • 
5 
51 
170 
6 
0 
6 
01 
Note. —Nothing has been added for the time required for the seedling to establish itself. 
* 0" to 12"-17 measts. ; 12" to 24"-99 measts.; 24" to 36"—102 measts. ; 36" to 48”—118 measte 
48 v to 60''—42 measts. ; 60" to 72"—2 measts. ; = 380 measurements. 
[ 46 ] 
