1 8 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
Blood. — Examined on one occasion showed one trypanosome to coverslip 
preparation. 
Differentia/ Count of Leucocytes 
Neutrophiles - - 23*5 per cent. 
Eosinophiles - S'75 P er cent. 
Mast cells - - 0-25 per cent. 
Mononuclear, small cells, 57*50 per cent. — Lymphocytes - 56*75 per cent. 
,, with irregular, abnormal 
nuclei, 0-75 per cent. 
Mononuclear, large cells, 13*00 per cent. — Large lymphocytes - 10 per cent. 
Large mononuclears, 0-25 per cent. 
Transitionals - 2*75 per cent. 
100*00 per cent. 
Four hundred cells from two slides were counted. 
Case 3. — Girl, age fifteen years, living at Lammin. 
History. — The girl was a water carrier and had never been tar away from the 
village. She said she had never been ill in her life. She felt perfectly well and had 
had no fever. 
Clinical Examination. — Revealed nothing abnormal, beyond a slight enlarge- 
ment of the spleen. Patient was a very well-developed girl. 
Pulse and respiration were normal, and there was no fever. 
Blood. — Examined on one occasion showed twentv-three trypanosomes to 
coverslip. 
Differential Count of Leucocytes 
Neutrophiles - - 34 per cent. 
Eosinophiles - 10 per cent. 
Mast cells -- - 1*75 per cent. 
Mononuclear, small cells, 44*25 per cent. — Lymphocytes - 43*5 percent. 
,, with irregular 
nuclei, 0*75 per cent. 
Mononuclear, large cells, io - oo per cent. — Large lymphocytes, 4*25 percent. 
Large mononuclear, i*o percent. 
roo*oo Transitionals - 4-75 per cent. 
Four hundred cells were counted from two slides. 
Case 4.— -Boy, age twelve years, living at Gunjur, a large town not far from 
the coast, in the Kommbo district. 
History. — This boy came to Gunjur last year (1901), before the rains, from near 
Rufisque, in Senegal. A very indefinite history of fever was given by his guardians, 
who mentioned that the boy suffered from enlarged glands in the neck, and would 
