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



Table III. — Percentages of Posterior-nuclear Forms found among the Short 

 and Stumpy Varieties of the Trypanosome of Strain I, Eeedbuck. 



Date. 



Experiment 

 No. 



Animal. 



Percentage among short 

 and stumpy forms. 



1912. 









July 17 



847 



Eat 





„ 20 



847 





2 



„ 22 



847 





2 



„ 23 



847 





4 



„ 24 



847 





9 



„ 25 



847 





10 



„ 26 



847 





19 



„ 27 



847 





22 



„ 29 



847 





4 



Average 



8-4 



II. Morphology of Strain II, Watcrbuck. 



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 IV. — Measurements of the Length of the Trypanosome of Strain II, 



Waterbuck. 



Date. 



Method of fixing. 



Method of 

 staining. 



In microns. 



Average 

 length. 



Maximum 

 length. 



Minimum 

 length. 



1912 



Osmic acid 



Giemsa 



23 -5 



33 -0 



16 -0 



