1909,] Sleeping Sickness in Uganda. 59 



Experiment 612. — Monkey. 



Date. 



Ko. of flies. 



Trypano- 

 somes. 



Malaria. | 



Date. 



No. of flies. 



Xrypano- 

 somes. 



Malaria. 



Put 

 on. 



Fed. 



Put 

 on. 



Fed. 



1909. 











1909. 











Mar. 25 



340 



185 







Mar. 29 



100 



76 







„ 26 



250 



124 







„ 30 



200 



115 





+ 



27 



200 



115 







April 6 







+ 



+ 



Remarks. — Eesult positive. Infection probably March 30 ; 615 flies. 



Experiment 674. — Monkey. 





No. of flies. 









No. of flies. 













Trypano- 

 somas. 











Trypano - 

 somes. 





Date. 



Put 

 on. 



Fed. 



Malaria. 



Date. 



Put 

 on. 



Fed. 



Malaria. 



1909. 











1909. 











April 8 



1 „ 9 



250 

 500 



160 

 240 







April 23 

 „ 26 



270 

 200 



180 

 160 







( „ 10 



500 



220 







„ 28 



400 



240 







» 12 



500 



245 





+ 



„ 30 



400 



160 







„ 15 

 19 

 „ 20 



500 



340 







May 1 



500 



290 







250 



180 







>, 3 

 „ 7 







+ + 



+ 

 + 



„ 22 



300 



190 

















Remarks. — Result positive. Infection April 30 ; 2315 flies. 



Experiment 758. — Monkey. 



■ 



No. of flies. 









No. of flies. 













Trypano- 



somes. 











Trypano- 

 somes. 





Date. 



Put 

 on. 



Fed. 



Malaria. 



Date. 



Put 

 on. 



Fed. 



Malaria. 



1909. 











1909. 











May 8 

 11 



270 

 250 



210 

 170 







May 22 

 „ 28 

 June 2 



200 



_ 



130 





+ 

 + 



„ 14 



200 



120 













+ 



„ 17 









+ 



„ 7 







+ 



+ 



Remarks. — Eesult positive. Infection May 28 ; 630 flies. 



