60 Col. Sir D. Bruce and others. [Nov. 16, 



Experiment 976. — Monkey. 



Date. 



No. of flies. 



Trypano- 

 somes. 



Malaria. 



Date. 



No. of flies. 



Trypan© - 

 somes. 



Malaria. 



Put 

 on. 



Fed. 



Put 

 on. 



Fed. 



1909. 



June 9 

 „ 10 

 17 



800 

 450 

 550 



260 

 180 

 190 







1909. 

 June 18 

 „ 20 

 „ 21 



200 

 520 



90 

 230 



+ + 



+ 

 + 



Remarlis. — Result positive. Infection June 10 ; 440 flies. 



Experiment 1117. — Monkey. 



Date. 



No. of flies. 



Trypano- 

 somes. 



Malaria. 



Date. 



No. of flies. 



Trypano- 

 somes. 



Malaria. 



Put 

 on. 



— - — — 



Fed. 



Put 

 on. 



Fed. 



1909. 

 June 24 

 „ 25 

 „ 26 

 >, 28 

 „ 29 



200 

 300 

 150 

 380 

 500 



120 

 160 

 80 

 165 

 210 







1909. 

 June 30 

 July 1 



„ 3 



„ 5 



7 



500 

 500 



4 



130 

 220 



+ 



+ 



+ 



Reviarlcs. — Eesult positive. Infection June 28 ; 525 flies. 



Experiment 1 276. — Monkey. 



Date. 



No. of flies. 



Trypano- 

 eomes. 



Malaria. 



1 



, Date. 



No. of flies. 



Trypano- 

 somes. 



Malaria. 



Put 

 on. 



Fed. 



Put 

 on. 



Fed, 



]y09. 

 July 9 



„ 12 

 „ 15 



110 



500 



70 

 230 





+ 



1909. 

 July 19 

 „ 20 

 22 



300 



180 



+ 



+ 

 + 



Remarks. — liesult positive. Infection July '12 ; 300 flies. 



