TRYPANOSOMIASIS EXPEDITION TO THE CONGO 39 
Case 99. Mozao. At the end of the first examination on March 5 seven 
trypanosomes were seen to a field. On March 6, 7, and 8 none were seen. 
Case 102. Kondolo. On February 24, seven parasites were seen to a cover ; on 
February 25, seventy to cover ; on February 26 and eight following days, none were 
seen, although observations were made every other day. 
A second similar acme and sudden disappearance was recorded in this case. 
On March 10, six parasites were seen to cover; on March 1 1, two hundred and fifty ; 
but on March 12, none were found. 
Case 90. Bugwendi. On February 26, 27, 29, and March 1, parasites were 
seen in the following numbers respectively, eight, five, five, and one to a cover. On 
March 2, twenty-four were seen ; but from March 3 to date of death (March 2 1 ) they 
were absent. 
Case 101. Oporanga. On March 1, 2, 3, parasites were seen in numbers six, 
forty-eight, thirty-one, respectively, to the cover-slip. On March 4, one hundred and 
twelve were noted ; but on March 6, 7, and 8, not one was to be found. (No 
examination on March 5). 
Case 66. Tenda. On February 23, 24, and 25, the number of parasites 
recorded per cover was four, five, and seven, respectively,. On the 26th, seventy to 
a cover ; but on the 27th, and for fifteen subsequent days, none were found. 
Case 85. Banja (see below). Illustrates a somewhat opposite condition. The 
parasites increased in this case to an acme which lasted tor two or three days, and 
then a marked diminution in number was observed. This patient, who is still under 
observation, illustrates the constancy with which parasites are seen in the peripheral 
blood of some cases. It will be noted that his general health has latterly improved. 
Case 85. Banja. Male. Age twenty-six. 
History. — Patient comes from the Sango district of the Bangala country, where 
Congo Sickness, so far as we know, is not present. He has been employed for some 
years on steamers plying on the upper river. A month before being sent to hospital 
was imprisoned on a charge of cannibalism. No history of illness before going to 
prison. 
January 20, 1904. General condition : Somewhat emaciated ; expression pained 
and anxious ; intelligence fair, answers questions slowly but correctly ; breathing 
laboured — is apparently very ill. His skin is dry and filthy, no ' craw-craw.' Slight 
oedema of forehead, considerable of shins and feet ; lymphatic glands all enlarged, 
especially femoral and inguinal ; tongue coated, moist, and steady. 
Circulatory system, heart sounds booming at apex ; pulmonary second sound 
accentuated and dicrotic. Respiratory system, dullness at base of right lung, loss of 
breath sounds, pleuritic rub and moist rales. Fiver enlarged and painful. Spleen 
not enlarged. Nervous system, patellar and cremasteric reflexes not obtainable, 
epigastric increased ; pupils equal and react to light. 
