186 Zrypanosome Diseases of Domestic Animals in Uganda. 
CULTIVATION OF T. NANUM. 
No attempt was made at Mpumu to cultivate 7. nanwm. 
THE CARRIER OF T. NANUM. 
Of the two experiments made at Mpumu with Z. nanum and Glossina 
palpalis, one was unsatisfactory and the other negative. Since the two oxen 
supposed to be suffering from 7’. nanwm disease came from Namukekera, 
where it is stated there are no tsetse flies, it is probable that 7. nanwm, like 
T. pecorum, is carried by some species of biting fly other than Glossina. 
CONCLUSIONS. 
1. 7. nanum is indistinguishable from TZ. pecorum either in the living 
condition or when fixed and stained. 
2. It differs from Z. pecorwm in not being pathogenic to the smaller 
laboratory animals. 
3. The carrier of 7. nanwm is probably the same as that of 7. pecorum, as 
both diseases occur under the same conditions, but there is no evidence 
available as to what the carrier is. 
DESCRIPTION OF PLATES. 
PuLatTeE 13. 
Figures in black and white for the comparison of Trypanosoma nanum, Uganda, 1909, 
and 7. nanum, Sudan, 1904. x 2000. 
PLATE 14, 
T. nanum, Uganda, 1909, in the goat. Fixed osmic acid, stained Giesma. x 2000. 
