210 
2. Make a map of the neighbourhood, noting— 
{a) All breeding grounds. 
( b ) What species are found breeding in 
those examined (Fig. 69). 
^ 0 \ 
«C' 
, ... y * 
x>5\W _^S" N 
Fig. 69 . Map shewing how to make a Malarial Survey 
(B) The Presence of Winged Anophelines — 
1. Search in outhouses, under eaves, etc., as 
described in Chap. IX, for Anophelines. Determine 
the species, note relative numbers of each species 
on map. The relation of Anophelines to native 
dwellings will probably be evident. 
2. In the dry season the search for Anophelines 
may be negative, and there may be no breeding-places. 
Make in the most sheltered places small cement pools, 
