causing Disease in Man in Nyasaland. 193 



Breadth. — The following Table gives the breadth of the trypanosome of 

 Strain VI, Manakumpara : — 



Table V. — Measurements of the Breadth of the Trypanosome of Strain VI, 



Manakumpara. 



Date. 



Experiment 

 *No. 



Animal. 



Number of 

 trypanosomes 

 measured. 



In microns. 



Average 

 breadth. 



Maximum 

 breadth. 



Minimum 

 breadth. 



1913 



2239 



Eat 



500 



2 76 



450 



1-25 



In regard to shape, contents of cell, size and position of nucleus and micro- 

 nucleus, disposal of undulating membrane and tiagellum, no difference can 

 be made out between the Strains VI to X and the first five strains. 



VII. Morphology of Strain VII, Yoramu. 



The following Table gives the average length of this trypanosome as found in 

 the white rat, 500 trypanosomes in all, and also the longest and shortest : — 



Table VI. — Measurements of the Length of the Trypanosome of Strain VII, 



Yoramu. 



Date. 



Expt. 



No. 



Animal. 



Method of 

 fixing. 



Method of 

 staining. 



Average 

 length. 



In micron?. 



Maximum 

 length. 



Minimum 

 length. 



1913. 

















June 30 ... 



2236 



Eat 



Osmic acid 



Giemsa 



- 25 -8 



28 -0 



23 -0 



„ 30 ... 



2236 









26 7 



33 -0 



21 -0 



„ 30 ... 



2236 





)) 





26 -9 



31 -0 



22 -0 



July 1 ... 



2236 







>> 



27 -0 



32 -0 



18 -0 



„ 1 ... 



2236 







n 



26-8 



32 -0 



21 -0 



„ 1 ... 



2236 









25 -8 



31 -0 



21 -0 



„ 2 ... 



2236 







)» 



20 -3 



24 -0 



18 -0 



9 



,, t# ... 



2236 







») 



21 -5 



26 -0 



18 -0 



„ 2 ... 



2236 







33 



21 9 



29 -0 



19 



„ 3 ... 



2236 





»j 





20 -5 



28 -0 



16 -0 



„ • 3 ... 



2236 









20 -2 



29 -0 



16 -0 



„ 3 ... 



22S6 





'» 



33 



19 4 



26 -0 



16 -0 



„ 4 ... 



2236 





j> 



33 



19 -4 



23 -0 



17 -0 



„ 4 ... 



2236 







33 



19 -9 



24 -0 



18-0 



„ 4 ... 



2236 





j) 





19 -5 



22 



18-0 



„ 5 ... 



2236 







•3 



22 -0 



27 -0 



18 -0 



„ 5 ... 



2236 





3) 





21-7 



30 -0 



17 -0 



„ 5 ... 



2236 





33 





21 -9 



30 -0 



18-0 



„ 6 ... 



2236 









217 



28 -0 



17 -0 



„ 6 ... 



2236 





33 





21 -5 



28 -0 



17 -0 



„ 6 ... 



2236 









22 -3 



28 -0 



18-0 



„ 7 ... 



2236 







3> 



22 -5 



28-0 



18 -0 



„ 7 ... 



2236 







3' 



22 -5 



28 -0 



18 -0 



„ 7 ... 



2236 







33 



22 -0 



29 -0 



18 -0 



„ 8 ... 



2236 









22 -4 



34 -0 



18 -0 













22 5 



34 



16-0 



