437 
Bubbbb (Castilloa elastica ).— An am of 
hint acres of this rubber ,was put out in March. J >e 
s=5“SE;si 
soap and water. f t | lls vfest African rubber 
^srwsasifctt ***- «» — 
!nm,r7erv. A trial plot will be put out in tins year. 
camphor.—' The camphor trees in Batu Tiga remain in 
goodliealt.li and have made 
* ,* The largest trees measure now some -o met in uei^i 
a km 
itS 'in Kuala Lumpur, planted in Sent- 
tember, 1907, have made good progress. 
This plot was divided into three parts and treated as 
follows : 
A. Glean weeded; 
B. Planted with mimosa ; 
P Planted with erotalaria. 
The object being to determine the effects to clean weed- 
ing and the use of “over plants or green manures on the 
orowth of the camphor trees. , 
° The trees were all planted at the same time, and at e 
time of the commencement of the experiment all tlu ee p s 
Ze about even. The average height and breadth of the 
I lushes i nea cl i p I. ot at the end of the year were as. follows: 
Average breadth IS ins. 
Average height from ground 
A. 
B. 
ft. ins. 
5 
4 n 
ft. ins. 
4 5 
3 5 
3 57 
G. •• •• ... 5 91 ■■ 
Plot \ was weeded four times during the nine months 
(cost 8° 80) Plot B was weeded once after planting (cos 
To lti Flot Cwas weeded once after planting and was 
( Ut °8onm300 plants were distributed for trial to different 
estates in the early part of the year. 
