Indian Forest Records . [Vol. VI 
SUMMARY OF RESULTS OF MEASUREMENTS IN FOREST RESEARCH 
Institute Sample Plots. 
Species— PIN US LONG1FOL1A. 
Sample Plot. 
No. 1 . 
Thinned or Unthinned. 
Thinned. 
Descriptive details 
Fertile clayey loam. Arable land. Density 
full. Plantation in big pole stage. 
Period of measurement 
1912-13 to 1916-17. 
Total number of measurements 
31 * 
Rate of growth in girth. 
Age in years. 
Ft. in. 
10 
0 5 
20 
1 10 
30 
2 10 
40 
3 10 
50 
5 3 
48"_16 o ’ 7 „“ measts., 24" to 36"—11 measts., 36" to 
45 lo measts., 48 to 60 2 measts.=31 measts. 
itself. ° TE ' N ° thmg has been added for the time required for the seedling to establish 
Record of Periodical Volume Measurements in Forest Research Institute Sampi 
Plots. 
Exyerimental Garden, Dehra Bun, United Provinces. 
1912-13 
1916-17 
Species. 
Pinus longifolia •{ 
322 
252 
38-7 
45-4 
Volume per acre in 
SOLID CUBIC FEET. 
6,353 
7,396 
1,678 
407 
8,031 
7,803 
INTERMEDIATE YIELDS PER ACRE 
FROM THINNINGS. 
Periodic yields. 
139 
70 
CM 
CD 
> . 
n 
XS tc 
S a 
494 
888 
J . 
to XS 
615 
295 
1,109 
1,183 
Total to date. 
S.S 
494 
1,382 
T3 
§ XS 
l-B 
-H 5b 
C3 * 
S3 
615 
910 
1,109 
2,292 
Plan¬ 
tation. 
r 
L 
292 ] 
