142 



MALARIA 



capacity per family with an average income of $800, 

 gives a total loss of #20 X 100 ( = $2000) + $800 X 100 

 X 25 per cent ( = #20,000) =#22,000. Ordinarily it is 

 possible to reduce the total amount of malaria by at 

 least 50 per cent in one season. At this rate there is 



Fig. 39. School children selling tags. The proceeds were added to the anti-mosquito 



fund. 



a saving of #22,000 X 50 per cent — #1600 = #9400 (nine 

 thousand four hundred dollars) in one season to this 

 scattered rural community. (The reader is referred 

 to p. 7 for data relative to larger towns.) Surely this 

 is a good investment. 



The following table is intended to give an idea what 

 items are involved in the monthly expense account. 



