XIII, B, 1 



Barber: The Transmission of Malaria 



19 



if from a crescent carrier (see under Table V), was from this 

 carrier when gametes were 13.6 per cent. Table IX shows 

 the gradual decrease of spleen and crescents under quinine 

 treatment. 



Table IX. — Certain data on crescent carrier 1997. 



Date. 



Crescents 

 per 100 

 leuco- 

 cytes. 



Subtertian rings per 

 100 leucocytes. 



Temper- 

 ature. 



Remarks. 



June 24 

 June 25 

 June 26 

 June 29 

 June 30 

 July 1 

 July 2 



July 3 

 July 4 

 July 5 



July 7 

 July 8 

 July 9 

 July 10 

 July 11 

 July 12 

 July 13 

 July 14 

 July 15 

 July 16 

 July 17 

 July 18 

 July 20 

 July 21 

 July 22 

 July 23 

 July 24 



98.7 

 117.1 

 147.6 







Spleen enlarged. 

 Entered our ward. 



Quinine 30 grains. Spleen to umbilicus. 

 Quinine 30 grains and treatment contin- 

 ued on subsequent days. 



Spleen, handsbreadth. Given thymol for 

 hookworm. 



Spleen two and a half fingersbreadth. 



Spleen one fingersbreadth. 

 Spleen just palpable. 



Discharged. 



do 











100.8 



100.4 



103.4 



99.2 



100.0 

 normal 



161.4 

 65.8 

 80.2 



57.7 



About 100 



About 200. _ .1 



About 85 











23.2 

 18.0 

 13.6 



9.3 

 4.8 

 4.4 

 4.1 

 3.2 

 1.1 

 1.4 

 0.8 

 0.9 

 0.4 

 0.2 

 0.0 

 0.3 

 0.1 











































































The relation of the viability of gametes to their number in 

 the blood of the patient is of interest on purely scientific as well 

 as on epidemiological grounds, and the data of experiments with 

 several crescent carriers will be given in more detail. Tables 

 X and XI contain the data of three carriers on whom a consid- 

 erable number of cages of mosquitoes were fed. In Sin Tee, 

 Table X, mosquitoes known to have taken blood were not sepa- 

 rated, but two or more feedings were done on the same lot. In 

 Plantation No. 1, Table X, "blooded" females only were in- 

 cluded in all species, and there was but one exposure to the 

 carrier. 



