32 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
enlargement of genitals was present. Their coats were smooth and glossy. There 
was no running from eyes or nostrils. Mucous membranes were rather pale. The 
appetite in each case was good. Their abdomens were rather distended. These 
animals were not grass fed. Temperature of Case VII, ioo° to ioi° F. Number of 
parasites, one to a coverslip preparation. 
Case VIII. — Stallion, Jourdan, eight years old : it came two years previously 
from Thies. 
History. — This horse was taken ill at the same time as Case VII. The symptoms 
were the same in both cases. The animal had not been worked for some time when 
we saw it, and was in much better condition than Case VII. 
The clinical examination has already been given. Temperature was ioi°to 
ioi - 5° F. Trypanosomes were very scanty, one to a coverslip preparation, and were 
seen on but one occasion. 
M. Porthes recognized the illness from which these two horses were suffering. 
He believed that they acquired it while in Tenda, where forage is poor and water 
is scanty. He ascribed the first symptoms which he noticed, weakness and swelling 
of the cannons, to the poor food, and hard usage over stony ground which horses get 
while travelling in that district. He had seen other horses suffering from a similar 
affection, and described in them a fulness of the loins which alternated with distension 
of the abdomen and swelling of the sheath and scrotum. He described an accompany- 
ing anorexia, and stated that the course of the illness may vary, death following after 
a week or two to several months. Sometimes, indeed, animals may recover. He has 
never observed running from eyes or nose, haemorrhages from any part, or marked 
oedema in any of these cases. He had seen staring of the coat in some cases, never 
depilation. He had never seen the disease in an epidemic form. 
Case IX. — A grey stallion, five years old. 
The origin of the horse was not known. It had been owned for fifteen 
months by the officer who had it when we first saw it. Two years and a half previous 
to this time the horse became extremely emaciated and weak. It was expected to die, 
but recovered its strength after a prolonged rest. In July, 1902, it had lampus badly 
and became very thin. When the mouth was cured and the animal once more com- 
menced to eat heartily, it rapidly regained the weight lost through lack of food. In 
January, 1903, the horse was taken on a tour through the country on the north bank 
of the Upper River, and, although it had lots of hard work, returned to the Lower 
River in apparently excellent health. 
Cluneal History. — When the animal was seen in April, 1903, its owner stated 
that a month and a half previously he had noticed that it was rather ' slack ' and 
t coughed 'at night.' It had since lost flesh, ' particularly about the chest,' and the 
abdomen had become 'bigger.' The horse stood with hanging head, in the same 
listless way as was noticed in the preceding cases. The scrotum and penis were 
