14 
Indian Forest Records. 
[Vol. VIII 
18. An abstract of the observations recorded is given below :— 
Forest 
Loam. 
Pot Number. 
No dead leaves. 
Layer of dead sal leaves I 
placed on surface of soil 
on August 20th, 1917. 
Remarks. 
12 
15 
18 
11 
14 
19 
Number of healthy seedlings at 
beginning of experiment on 
August 22nd, 1917. 
14 
16 
21 
18 
20 
19 
Pots 11 and 12 
were porous pots 
which were sunk 
in the soil, so that 
their upper edges 
projected one inch 
above the level 
51 
57 
Number of living seedlings in 
February 1919, at close of 
experiment. 
11 
16 1 
20 
8 
1 
7 
I 8 
47 
23 
of the surrounding 
soil. 
The remaining pots 
were glazed and 
non-porous and 
were not sunk. 
Percentage of deaths during 
experiment. 
Average length of root of sur¬ 
vivors in February 1919 in 
inches. 
7-8 
59*6 jj 
1 
9-3 | 
14-2 J 
1 16-4 
6-0 
[ n-0 
1 
10-3 
13-3 
9-1 
Sand. 
Pot Number. 
No dead leaves. 
Layer of dead sal 
leaves placed on 
surface of soil on 
August 20th, 1917. 
22 
24 
25 
27 
23 
26 
28 
Number of healthy seedlings on 
August 22nd, 1917. 
17 
14 . 
7 
5 
17 ] 
11 
13 
All the sand pots 
were glazed non- 
porous pots and 
were not sunk in 
the soil. 
43 
41 
Number of living seedlings in 
February 1919. 
9 I 
7 
7 ; 
5 
8 ! 
10 1 
1 11 
Percentage of deaths during 
experiment. 
'""Si 
28 
29 
34-9 
29-3 
Average length of root of sur¬ 
vivors in February 1919 in 
inches. 
8-9 j 
15-8 j 
14-0 j 
11-8 
12-8 | 
18-3 
161 
12-6 
15-7 
19. The chief points of interest are as follows :— 
(1) About 3 months after the dead leaves had been placed in posi¬ 
tion, i.e. on November 24th, 1917, the injurious effect of the 
dead leaves had become apparent in the appearance of the 
seedlings in loam pots 11, 14 and 19 which were looking 
decidedly less healthy than those in pots 12, 15 and 18, many 
of them having shed their leaves. At the beginning of 
January 1918, i.e. about 4J months after the dead leaves 
had been put in position, the majority of the seedlings had 
lost their leaves in pots 11, 14 and 19, while those in pots 12, 
15 and 18 were quite healthy. At this time, the seedlings 
in the sand pots were quite healthy both in the pots with 
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