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Keywords:
JAMES FORREST,
MEDICAL,
SCIENCE,
ENGINEERING,
PUBLIC HEALTH,
SOCIAL,
TROPICS,
HYGIENE,
HISTORY,
IRRIGATION,
MALARIA,
MEDICINE,
SNAILS,
DISEASES,
COUNTRIES,
DEVELOPING,
BILHARZIA,
CONTROL,
RESERVOIRS,
CLIMATE,
SCHISTOSOMIASIS,
EQUINE,
ENCEPHALITIS,
HORSES,
ENCEPHALITIS,
MOSQUITOES,
BIOLOGY,
BIOLOGISTS,
TSETSE FLIES,
FLIES,
PHYSIOLOGY,
INDUSTRIAL,
PREVENTIVE,
ENVIRONMENT,
LONDON UNIVERSITY,
LONDON SCHOOL OF HYGIENE & TROPICAL MEDICINE,
TENNESSEE,
UK,
CEYLON,
SRI LANKA,
EGYPT,
USA,
UNITED STATES,
AFRICA
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© 1949 Thomas Telford Ltd
1949
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