416 



Sir D. Bruce and others. Trypanosome [Feb. 24, 



Table XII. — Percentage of Posterior-nuclear Forms found among the Short 

 and Stumpy Varieties of the Trypanosome of Strain IV, Wild Glossina 

 morsitans. 



Date. 



Experiment 

 No. 



Animal. 



Percentage among snort 

 and. stumpy forms. 



1912. 









June 17 



658 



Eat 







„ 18 



658 









„ 19 



658 





6 



„ 21 



658 





16 



„ 22 



658 





9 



„ 24 



658 





7 



„ 25 



658 





7 



„ 26 



658 





8 



„ 27 



658 









„ 28 



658 





10 



„ 29 



658 









July 1 



658 









„ 2 



658 









„ 3 



65S 











4-5 



V. Morphology of Strain V, Wild Glossina morsitans. 



The following table gives the average length of this trypanosome as found 

 in the rat, 500 trypanosomes in all, and also the length of the longest and 

 shortest : — 



Table XIII. — Measurements of the Length of the Trypanosome of Strain V, 



Wild Glossina morsitans. 



Date. 



Method of fixing. 



Method of 

 staining. 



In microns. 



Average 

 length. 



Maximum 

 length. 



Minimum 

 length. 



1912 



Osmic acid 



G-ienisa 



22 -8 



35-0 



15-0 



