20 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
He had had slight attacks of ' fever ' during the past year, but they had not 
prevented him from working. Though he was a powerful man he said that he had 
lost strength during the past year and that he was not able to lift as heavy weights 
as usual. When at work and even when not working he sometimes ' breathed 
hard.' For about a month he had had pain in his right side and back, which he 
believed was due to a strain caused by lifting a heavy weight. 
History reliable ; an intelligent man. 
Clinical Examination. — Patient was a very well- developed man. Muscles were 
good, appetite good, bowels regular. Respiratory system normal. Heart, slight 
accentuation of first sound at apex. Liver normal. Kidneys normal, urine could 
not be obtained for examination. Spleen extended 1*25 cm. below costal margin, 
not tender. All lymphatic glands were slightly enlarged, especially the inguinal 
groups, but freely movable. Some slight 'pitting' over tibiae and dorsa of feet, 
especially the left. No varicose veins. There were some slight scars on the shins 
and an old injury to the left little toe (crushed). Some slight puffin ess of the 
lower eyelids, especially the left, was noticed. 
Pulse, 82 ; respiration, 20 ; temperature, 99'8° F. 
Blood. — One examination showed eleven trypanosomes to cover — 
Red cells - 4,600,000 
White cells - - - 7>5°° 
Haemoglobin - - 77 per cent. 
Differential Count of Leucocytes 
Neutrophiles - - 43-75 percent. 
Eosinophils - 5 "42 per cent. 
Mast cells - 0-71 per cent. 
Mononuclear, small cells, 29*42 per cent. — Lymphocytes - 29-14 per cent. 
,, with irregular 
nuclei, 0*28 per cent. 
Mononuclear, large cells, 20-7 per cent. — Large lymphocytes, 13*42 per cent. 
Large mononuclears, 2 - o per cent. 
ioo - oo Transitionals - 5-28 per cent. 
Seven hundred cells were counted from five slides. 
Case 6. — Mandingo youth, age twenty-two years, living at Fatotenda on the 
upper river. 
History. — Was born at Medina, five days' march to the south from Fato- 
tenda. He was a student, and although he had travelled a good deal in French 
territory to the south of the Gambia he had never, until he came to Fatotenda in 
January, 1903, either lived on the river or done any sort of manual labour. 
