XIII, B, 1 



Barber: The Transmission of Malaria 



43 



was made of the proportion of parasitized erythrocytes. For 

 comparison, the number of parasites found in thick films was 

 estimated in terms of the number per 100 leucocytes. The ratio 



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March 22-27, 1916. 



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Fig. 2. Temperature chart of Thang' Hong. 



of daily increase or decrease of parasites as obtained by the two 

 methods is compared. In experimental case 408 only the pro- 

 portion of parasites in the thick film was estimated. 



