PRELIMINARY NOTE UPON A TRYPANOSOME 
OCCURRING IN THE BLOOD OF MAN 
By J. EVERETT DUTTON, M.B., Vict. 
Walter Myers Fellow, Liverpool School of Tropical Medicine 
History of Case 
The patient is an Englishman, forty-two years of age, who, for the past six years 
has been in Government employ with intervals of leave, as master to the Government 
boat, plying weekly up the Gambia river. 
His illness dates back to May last year, when he broke down, after very heavy 
duty which often necessitated his remaining at times on watch for the twenty-four 
hours. Up to this time he had enjoyed good health, except for occasional attacks of 
malarial fever. 
On the ioth of May, 1901, he was admitted into the hospital at Bathurst, with 
fever, under the care of the Colonial Surgeon, Dr. R. M. Forde, to whose kindness 
I am indebted for permission to reproduce the temperature chart (Chart No. 1), and 
who will publish, at an early date, some account of the symptoms observed at this 
time. 
On admission to hospital, patient's blood was examined (fresh preparations). 
No malaria parasites were seen, but Dr. Forde informed me that he saw very many 
actively moving worm-like bodies, whose nature he was unable to ascertain, and it 
was on account of this observation that he asked me to examine the blood when the 
patient again returned to Gambia. 
On June 1, after three weeks in hospital, the patient was invalided home, and 
arrived in Liverpool on June 16, in a very weak state. 
On August 12, he was admitted into the Southern Hospital, under the care of 
Dr. Macalister, to whom I am indebted for the following notes. At this time his 
chief complaint was general weakness and lack of energy. 
On admission, temperature was subnormal ; no pain, but slight headache a few 
days previously. Tongue furred, appetite fair, no vomiting, bowels somewhat 
constipated ; liver slightly enlarged, but no tenderness ; spleen, normal in size, 
could be felt below the ribs on the 13th ; considerable tenderness over the splenic 
area. 
Pulse : On admission at 12-30 p.m., pulse, 120 ; in the evening, 92, regular in 
time and force, low tension, fair volume. 
