DEVELOPMENT OF COXTROL ME AS CUES 



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reduction in prevalence of malaria as revealed by blood examina- 

 tions, by house-to-house inquiry and by census of the sick, 

 together with costs of the work year by year: 



This big reduction in the incidence of malaria at comparatively 

 small cost aroused great enthusiasm among the mill owners, 

 who previously had suffered serious losses owing to illness of some 

 emploj^es and seasonal departure of others to escape malaria. 

 The following is taken from a letter written by the treasurer 

 of the Roanoke Mills Co. to Surgeon R. H. von Ezdorf: 1 



"I will frankly admit that I could not realize what a great change 

 could be brought about by systematic work and with comparatively 

 little expense. The money spent in anti-malarial work here has paid 

 the quickest and most enormous dividends I have ever seen from any 

 investment, and, after having had our experience, I would, if necessary, 

 do the work over again if I knew it would cost ten times the amount." 



DEMONSTRATION AT ELECTRIC MILLS, MISS. 



Electric Mills, Miss., is a lumber town in northern Mississippi, 

 situated in a flat, rolling country with numerous surrounding 

 water-courses. The mill physician said that during September, 

 1912, 95 per cent of all sickness for the month was due to malaria 

 and that only two white families in town had not been afflicted 

 with it. 



Anti-mosquito work was commenced in May, 1914, by and 

 under the direction of Assistant Surgeon General H. R. Carter 

 of the U. S. Public Health Service. The following table 2 shows 

 the reduction in incidence of malaria year by year, and the cost 

 thereof : 



1 "Demonstrations of Malaria Control," U. S. Public Health Service, 191S. 



