.( 13 ) 
At the island of Pangkor Laut near the mouth 
•of the Perak River is a small settlement for Malays 
only. There is an asylum in Kuala Lumpur but the 
intention is to close this when there is sufficient 
accommodation at Pulau Jerejak. 
In all the above institutions' treatment by Chaulr 
moogra oil or its derivations is carried out. In some 
cases the results have been very encouraging. 
Diseases other than Zymotic. 
The principal diseases causing death are malaria, 
dysentery and diarrhoea, pulmonary tuberculosis. 
Malaria and Malaria Prevention. 
Malaria easily heads the list as the most important 
cause of sickness and death. It induces a high death 
rate and a low birth rate and is one of the chief reasons 
why such large tracts of fertile land in Malaya remain 
sparsely populated and undeveloped. 
It is impossible to estimate with any degree of 
exactitude what malaria costs this country annually 
but taking into account the loss of energy due to 
sickness, invaliding and death, the check to the natural 
population increase, and the dampening effect on 
recruitment of labour the loss in dollars must be 
millions. 
Malaria is preventable, but at a cost, and whether 
that, cost is justified in any case depends on local 
factors. Malaria prevention is a sound economic pro- 
position where groups of people are gathered together 
in towns, villages and estates. 
