A. D. Peacock 
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should be taken of conditions in which Anopheline waters are the sole watering 
places for military and civilian needs; also, sites for hospitals and large 
permanent camps likely to house malarial subjects should be carefully chosen 
and kept free from Anophelines. 
CONCLUSIONS. 
(1) The commonest Anopheline mosquito in the area is A. maculipennis. 
(2) The proportion of Anopheline waters in this area reached 14 %, 
i.e. 1 pool in every 7 is Anopheline. 
(3) The number of Anopheline waters per square mile reached 5. 
(4) The proportion of Anopheline waters with numerous larvae reached 
25 % * 
(5) The degree of Anopheline infestation appears to be low, absolutely, 
and in comparison with conditions in sub-tropical countries, very low. 
(6) Two districts, Moulle and Arques, are exceptionally highly infested 
for this area. 
(7) All waters, particularly those with vegetation consisting of grass or 
algae, are suspects. 
(8) An epidemic of malaria is unlikely in this area. 
(9) Military exigencies permitting, the problem of controlling Anophelines 
in the area ought not to be difficult. 
