112 
average duration after appearance of organisms being only twclv? ! 
days. The incubation period in three cases was nine days; in the f 
other two, sixteen and nineteen respectively. Organisms were ' 
constantly present after detection, and were numerous up to death, 
which occurred ten to fourteen days later. 
The temperature in the one animal taken varied little from normal 
until the trypanosomes appeared, when it rose and continued slightly 
elevated to death. The loss in condition was rapid, and the visiWe 
mucous membranes became very pale. Conjunctival discharge wa; 
not a constant feature, and in no case was any indication of paraly «5 
noted. 
On post-moriem, the spleen was much swollen, measuring from 
5 5 to 7 cm. by 3-5 to 4 cm., congested, rounded, soft and friable, with 
an average weight of 14 grammes. In one case rupture of the capsule 
had accelerated death. The lymphatic glands were enlarged, I 
oedematous and congested. 
9. White Rats. Five of these animals were inoculated. The 
period of incubation varied between six and ten days, and trypano¬ 
somes remained constantly present till death, which occurred in from 
I o to 29 days after inoculation. 
spleen was enlarged, congested, soft and rounded, 
e minute mesenteric lymphatic glands were distinct and 
one bull'lhTpTesencT 
passage from a ° o''f?iinism, whose extraordinarily rapi 
corpSculI; -d .he .Lie. 
spirochaete. When^our ..s to consider it as 
brought under rt-,1 u established this animal 
glass preoa f ' ^ observation, and stained films, and later, covei 
LpanosoL r ‘he organism to be 
similarly affected H animal was seen to b 
showed """" had been foun. 
to that of the bull '' hose rapidity of motion approximate 
examined 14 clttl ^ Broken Hill w, 
same organtm. Previously inspected, one of which showed th 
