railway some 30 miles North of the Kafuc. This runs most of the 
way on a watershed ; 6’/. morsitans has not yet been seen, and the 
nature of the country is not indicative of its presence, but on all the 
other roads the danger of infection is constant, and when the 
Northern ones are used it is recognised that all cattle must be 
sacrificed. 
In the first herd examined the trypanosomes seen in fresh cover- 
glass preparations appeared to be of two varieties. One, the 
prevailing type also found in other herds, was seen to possess the 
morphological features of T. dimorphon, Dutton and Todd. The 
second was seen in four of these animals, and later jn a fifth coming 
from another herd, and in two cattle which had been exposed to 
tsetse-flies experimentally. This, by reason of its extraordinarv' 
rapidity of motion in cover-glass preparation, is regarded as allied to 
T. vivax, Ziemann. 
INFECTION WITH T. DIMORPHOS 
0 ) The natural disease in Cattle.—There is nothing in the 
clinical picture of this disease to differentiate it in any way from other 
forms of trypanosomiasis. At some period there is an appearance 
of emaciation and dulness, the coat liarsh and hide-bound, head 
rooping. eyes dull and watery, but petcchiae on the conjunctival 
menabranes were very rarely noted, and occasionally there is a nasal 
discharge. Weakness or paresis of the hind limbs is not common, 
Zf IT of tlie lymphatic glands. 
a y e prescapular and precrural, is constant, but is of little 
diagnostic importance owing to Us prevalence m apparently healthy 
“uld not be found on blood 
examination or gland puncture. 
ord.Cary“lwe\ra"arof°tt"r‘7 
height of 1 country- --an open enclosure fenced to a 
were altred“ beasts-and 
blood examinT ° ^^niperatures were taken and 
t ! between 8 and „ a.nt., and Ae 
.h 7 e?pe;atiln; 7 ” ^-30 p.n,. and sunset. For 
leading to a ' crush"^' 7™"' ^"7*^ brought into a kraal-like enclosurf 
B crush, .nto wh.ch each was in turn driven. After the 
