August 1919 September 1919 
Average Number of Average Number of 
number of observations} number of observations 
Anopheline Average from which Anopheline Average from which 
d: CP per 10M2 were derived: 22 per 10 M2 were derived: 
5 se lo. the ©: lo. the 
t 
À and per salinity Anopheline and per salinity AR benne 
night So averages; night So, averages; 
oo Zone jd tE Se 00 20. the 
Iudiowil rossii salinity #judlowi| rossii salinity 
ele) OO averages ele; 99 averages 
| 
= 13 Aro || 833 11 
enn megs — | a => 
| N 
9 ee les En A 
Do NN EE 102 4 
