184 



Colonel Sir D. Bruce. 



[May 19, 



in well stained preparations, and Giemsa or some other Eomanowsky method 

 is the best for the purpose. 



Nvxleus. — Is oval or round and situated about the middle of the body. 



Micronucleus. — Small and round, situated, on an average, 1*5 microns from 

 the posterior end ; maximum, 4, minimum, 0'5. 



Undulating Membrane. — Is well developed and thrown into bold folds. 



Flagellum. — Most of these trypanosomes have a free flagellum. It averages 

 4 microns in length ; maximum, 9, minimum, 1. A small percentage are 

 without free flagellum, but this, in my experience, is rare. 



Chart 1. — Chart giviiig Curve representing the Distribution, by percentages, in respect 

 to Length of 820 Individuals of Trypanosoma evansi. 

 MiCRONS 



















































































F 







































V 



■x 





























































































/ 

































/ 

















v 

















































































0-7 1-3 2 5 4-9 71 9-2 15-8 15-3 131 14-4 8 5 4-3 1-2 H 0-4 — 0-2 



Percentages 



Comparison of the Disease of Camels, Sudan, with that of India. 



The disease of camels in the Sudan called Mbori is considered by Laveran 

 and others to be caused by Trypanosoma evansi. It will therefore be 

 interesting to compare a curve of the camel disease in India with the camel 

 disease of the Sudan. I am indebted to Dr. Andrew Balfour, Khartoum, for 

 a series of slides of this trypanosome, from which the following curve has 

 been made : — 



