40 Sir D. Bruce and others. Trypanosome 



TV. Strain IV, Chipochola. 

 Table IV. 









Period of 



Duration 





Date. 



JNo. 01 



Source of virus. 



incubation, 



of disease. 



Remarks. 





expt. 





in days. 



in days.* 









battle. 



















Sept. 13... 



1319 



From Dog 1260 



— 



— 



Never showed trypanosomes. 



„ 13... 



1320 



„ 1260 







)) 93 



Nov. 8... 



1319 



From Eat 1338 



20 







Still alive after 126 days. 



„ 8... 



1320 



1338 



— 



— 



Never showed trypanosomes. 









Goats. 







Sept. 13... 



1321 



From Dog 1260 



10 



35 



Died of Strain IV. 







1 9ftn 





Off 



JJ JJ 



„ 13... 



1323 



1260 



6 



22 



J) 1 3 



„ 13... 



1324 



„ 1260 



24 



33 



31 11 









13 2 



37 -2 











AT 1 



ivionKeys. 







Sept, 13... 



1325 



From Dog 1260 



10 



16 



Died of Strain IV. 



„ 13... 



1326 



1260 



10 



50 





„ 13 



1327 



„ 1260 



6 



51 





„ 13... 



1328 



1260 







Never showed trypanosomes. 







Average , , 



8-7 



39 -0 











Dogs. 







oept. rt... 



1260 



fill 1 11 f~\ \ e\ 



g 



32 



Di'pd of Strain TV 



„ 13... 



1329 



From Dog 1260 



6 



27 



31 JJ 



„ 13... 



1330 



1260 



6 



27 



JJ J) 



„ 13... 



1331 



1260 



6 



38 





„ 13... 



1332 



1260 



6 



40 



JJ J> 









6*4 



32 -8 











Rabbits. 







Nov. 6... 



1566 



From Rat 1338 



5 



15 



Died of Strain IV. 



» o— 



loo/ 



„ 1338 



5 





JJ 11 







Average 



5 



15 "5 









Guinea-pigs. 







Sept. 13... 



1333 



From Dog 1260 





... — 



Never showed trypanosomes. 



„ 13... 



1334 



1260 





— 



JJ 33 



13 



„ ID... 



1335 



1260 









Oct. 17... 



1333 



1331 



11 



43 



Died of Strain IV. 



„ 17... 



1334 



1331 



11 



70 



33 31 



„ 17... 



1335 



1331 



11 



rn 



oy 



31 13 







Average 



11 -o 



57 -3 











Rats. 







Sept. 13... 



1336 



From Dog 1260 



6 



26 



Died of Strain IV. 



„ 13... 



1337 



1260 



6 



28 



JJ JJ 



„ 13... 



1338 



1260 



6 



93 



JJ 11 









6-0 



49 -0 





* Duration includes the days of incubation ; it dates from day of infection. 



