Part II] Sole: Regeneration of Sal (Shorea robusta) Forests 35 
36. An abstract of the observations recorded is given below :— 
Plot XXI Under shade 
OF FOREST. 
Plot XVII Cleared 
STRIP 300 FEET X 60 FEET. 
I 
II 
III 
I 
II 
III 
Plot and Sub-plot. 
18' X 6' 
18'x 6' 
18'x 6' 
18'x 6' 
18'x 6' 
18'X 6' 
Seed on 
dead 
leaves. 
Seed on 
soil 
surface, 
soil not 
dug. 
Seed on 
soil 
surface, 
soil dug. 
Seed on 
dead 
leaves. 
Seed on 
soil 
surface, 
soil not 
dug. 
Seed on 
soil 
surface, 
soil dug. 
Date of sowing 
June 15th, 
1916. 
Number of seeds sown 
800 
800 
800 
800 
800 
800 
Percentage of healthy plants 
on March 31st, 1917. 
0 
0 
0 
6 
24 
25 
Summary of conclusions. 
37. From the above, the following conclusions seem justified : 
(1) The broadcast sowings in the open were very fairly successful, 
while those in the shade were a total failure. 
(2) The layer of dead leaves on the soil surface was decidedly injuri¬ 
ous. 
(3) The results in the dug soil were not obviously better than those 
in the undug soil. 
Experiment No. VII. 
Object to test effect of broadcast sowing on a large scale without fencing 
of any kind. 
38. When the present series of forest experiments was first started 
in 1912, porcupines did a lot of damage to the seeds in some of the plots ; 
as it was difficult to estimate at all exactly how many seeds had 
been destroyed, this interfered considerably with the experiments. After 
that year, therefore, all the experimental sowings were protected by 
wire netting of 1 inch mesh, placed 2 feet above the ground, buried 1 
foot below the surface and fastened above to the barbed wire fence 
which surrounded the plots (Ind. For. Rec. V. 4, Part II, 1916, pp. 
52,60).* As fencing of this kind on a large scale in the forests would be 
prohibitive, it was obviously advisable to see if similar results to those 
* One remarkable fact about these fences is that injurious herbaceous weeds 
frequently establish themselves in dense masses inside the fenced areas. This is es¬ 
pecially the case with A geratnm. Plate VI. Fig. 2, shows a fenced area where sal 
seedlings were entirely killed out by this weed which at present gives no trouble 
whatever in this locality in unlenced areas. 
[ 197 ] 
