1912.] The Measurement of Trypanosoma rhodesiense. 229 



On comparing these results with those obtained by Sir David Bruce for 

 1000 T. gambiense and 1000 T. hrucei respectively, we get the following 

 results : — 





In microns. 



Average length. 



Maximum length. 



Minimum length. 



T. rhodesiense 



23 -6 



39 



12 



T. gambiense 



22 -1 



33 



13 



T. hrucei 



23 "2 



38 



13 



From this table it is seen that the measurements of T. rhodesiense are 

 practically the same as those of T. hrucei, but differ from those of 

 T. gambiense. 



The average length of T. rhodesiense in man and other species of animals, 

 summarised from Table I, is as follows : — 

 Table III. 



Maximum length. 



31 -0 



30 -0 

 32-0 



28 -0 

 27 -0 



31 -0 



29 -0 



Minimum length. 



On comparing figures obtained from Table III with those from similar 

 hosts in the case of T. gambiense, measured by Bruce, we get the following 

 results : — 



Table IV. 





Average length. 



Maximum length. 



Minimum length. 





/*• 



f- 















24-3 



33 -0 



15 -0 





21 -5 



31 



12 '0 



Monkey — 











22 -4 



31 -0 



15 -0 





22-4 



30 -0 



15 -0 



Eat— 











22 -4 



32-0 



13 -0 





24 -5 



39 -0 



13-0 



