Paut II] Hole : Regeneration of Sal (Shorea robusta) Forests 31 
inches which would give established seedlings approxi¬ 
mately 3-J feet high in 5 years. 
'4) Owing to the level of the ground falling towards the south of 
Plot XIX (60' square), a good deal of sunlight penetrated 
between the crowns of the trees and the side-shade from 
the south was not so heavy as was the case in Plot IV, 
the results for which have been reported in para. 23 (2) above. 
It will be noticed, however, that the height-growth in the 
southern bed of Plot XIX is distinctly inferior to that in the 
northern bed of the same Plot, both in the weeded and un- 
weeded portions, which indicates the injurious effect of side- 
shade from the south. The southern bed of Plot XX (180' 
square) also received a good deal of side-shade from the 
south, during the autumn, winter and spring, but this 
appeared to be in no way beneficial in helping the 
plants to resist damage from drought, there being a larger 
number of casualties in this bed in May-June 1916 than in 
the northern bed of the same Plot which received practi¬ 
cally no side-shade at all. 
(5) Other beds which also gave decidedly inferior results were the 
northern and central beds of the 180 feet square. These 
areas received practically no side-shade at all, from the 
east, south or west. A large number of plants died from 
drought here in the dry season February to June 1916. 
(6) The areas which received a considerable amount of side-shade, 
both in the morning from the east and in the afternoon 
from the west, gave uniformly good results, with 39 per cent, 
survivals at the end of the first year for all beds in Plot XIX 
(60 feet square), and 38 per cent, survivals for all beds in Plot 
XVII (60 feet wide, north-south strip). 
(7) As the width of the north-south strip increases and exceeds 
the average height of the trees, the results get slightly worse ; 
compare the rather inferior results as regards survivals at 
the end of the first year in the eastern and western beds 
of Plot XVIII (100 feet wide strip) with the results in the 
eastern and western beds of Plot XVII (60 feet wide strip). 
Also compare the height-growth at the end of 3^ years in the 
weeded eastern and western beds of Plot XVIII with the 
height-growth in the weeded central bed of the same Plot. 
This inferior result is probably due to a rather longer 
exposure of the western portion of the strip to the morning 
: un and of the eastern portion to the afternoon sun. 
[ 193 ] n 
