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The antimalarial activities of the Health Depart- 
ments include investigation and research, the teaching 
of mosquitology to dressers, sanitary inspectors and 
others, propaganda and education of the public, 
antimosquito measures and quinine distribution. 
All health inspectors are trained in both laboratory 
and field work and are competent to make anopheline 
surveys. Arrangements have been made for free- 
instruction to estate dressers. Lectures and lantern 
demonstrations are given in schools and kampongs. 
Cards and posters have been distributed. Medical men, 
estate managers and others can obtain free advice and 
assistance on application to the district Health Officer. 
Quinine is distributed free through schools, post 
offices, district offices and police stations. 
In the Federated Malay States there is a board 
called the Malaria Advisory Board whose duty it is to 
collect information and advise generally on antiV 
malaria policy. 
In every district there is a local board which deals 
with local schemes in detail. The Principal Medical 
Officer is Chairman of the Advisory Board and district 
Health Officers, the Chairmen of the local boards. 
Travelling lecturers visit schools and villages 
giving popular lectures illustrated by lantern slides. 
All three methods of breaking the malaria chain 
(man to mosquito and mosquito to man) viz., quininiza- 
tion, screening and anopheline eradication, are practised' 
in Malaya. 
The method which has met with the greatest 
success is the. elimination of anopheline breeding 
grounds by land drainage. 
