210 



2. Make a map of the neighbourhood, noting 

 (a) All breeding grounds. 

 (&) What species are found breeding in 

 those examined (Fig. 69). 



Fig. 69. Map shewing how to make a Malarial Survey 



(B) T/>^ 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, 



