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



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

 and Stumpy Varieties of the Trypanosome of Strain III, Wild Gflossina 

 morsitans. 



Date. 



Experiment 



iNO. 



Animal. 



Percentage among short 

 and stumpy forms. 



1912. 









June 17 



657 



Eat 



4 



„ 18 



657 





9 



„ 19 



657 



j> 



13 



„ 20 



657 





4 



„ 21 



657 





2 



„ 22 



657 





15 



„ 24 



657 





32 



„ 25 



657 





18 



„ 26 



657 





4 



„ 27 



657 





27 





12 -8 



IV. Morphology of Strain 1 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 X. — Measurements of the Length of the Trypanosome of Strain IV, 



Wild Glossina morsitans. 



Date. 



Method of fixing. 



Method of 

 staining. 



In microns. 



Average 

 length. 



Maximum 

 length. 



Minimum 

 length. 



1912 



Osmic acid 



Giemsa 



22 -7 



34 -0 



15 -0 



