100 



Sir D. Bruce and others. Trypanosome 



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

 and Stumpy Varieties of the Trypanosome of the Liwonde Strain I. 



Date. 



1913. 

 Aug. 18... 

 19... 

 20... 

 21.., 

 22... 

 23... 

 24... 

 25... 

 26... 

 27... 



Experiment 

 No. 



2378 

 2378 

 2378 

 2378 

 2378 

 2378 

 2378 

 2378 

 2378 

 2378 



Animal. 



Percentage among short 

 and stumpy forms. 



Eat 



Average. 



2 

 23 

 17 



4 

 12 

 16 

 28 

 15 

 19 

 22 



15 -8 



Morphology of the Liwonde Strain II. 



Length. — The following table gives the length of this trypanosome as found 

 in the white rat — 500 trypanosomes in all : — 



Table IV. — Measurements of the Length of the Trypanosome of the Liwonde 



Strain II. 



Date. 



No. 

 of 

 expt. 



Animal. 



Method of 

 fixing. 



Method of 

 staining. 



In microns. 



Average 

 length. 



Maximum 

 length. 



Minimum 

 length. 



1913. 

 Aug. 18.. 

 18.. 



18.., 

 19.. 

 19.. 

 19... 

 20... 

 20.. 

 20.. 

 21.. 

 21.. 

 21.. 

 22.. 

 22.. 

 22.. 

 23.. 

 23.. 

 23.. 

 24.. 

 24.. 

 24.. 

 25.. 

 25.. 

 25.. 

 26.. 



2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 

 2363 



Rat 



Osmic acid 



Griemsa 



20 -3 



31 -0 



17-0 



19 -0 



23 -0 



14 -0 



20 -3 



26 -0 



18 -0 



19 -2 



25 -0 



18 -0 



20 -6 



25 -0 



17 -0 



19 7 



24 -0 



17 -0 



20 -7 



25 '0 



18 -0 



21 -2 



29 -0 



18 -0 



20 -0 



24 -0 



17 -0 



19 -0 



24 



16 -0 



19 9 



28 -0 



13 -0 



19 -8 



26 -0 



17 -0 



21 -9 



27 -0 



18-0 



21 -9 



28 -0 



18 -0 



22 -9 



27-0 



20 -0 



22 -6 



33 -0 



18-0 



22 -9 



34 -0 



18-0 



21 -0 



30-0 



17 -0 



20 9 



35 -0 



17-0 



22 -2 



31 -0 



16-0 



20-1 



31 -0 



16-0 



20 9 



28 -0 



16 -0 



20-5 



28 -0 



15 -0 



20 -6 



27 -0 



12 -0 



20-1 



31 -0 



17 -0 



20 -7 



35 -0 



12-0 



