| 1907. | Observations upon Phagocytosis. 171 
CasE.—Bone abscess in which B. coli was present ; treated with anti-coli serum and 
with vaccine. 
ic > ae 12. 
Index... 41... OAR 
The indices in these observations run :— 
0:9: eU Ls iult2 eae 
In the last of them the patient’s cells are doing considerably more work than 
normal cells in the same immune serum. 
In the three following observations, the cells from a standard case of 
acute pneumonia were tested against normal cells in immune sera from cases 
of different disease :— 
CasE.—Empyema. 
1 vol. of normal washed cells, 
1 ,,  patient’s (empyema) serum, 
1,4, melanin. 
1 vol. of washed standard pneumonia cells 
1 4, patient’s (empyema) serum, 
1 ,,. melanin. 
Casr.— Urinary fever (B. cold infection). 
1 vol. of normal washed cells, 
1,4, patient’s (urinary fever) serum, 
1 ,, melanin. 
1 vol. of washed standard pneumonia cells, 
1 ,,  patient’s (urinary fever) serum, 
1 eg emelamn. 
Index, 0.45 1°7 
CasE.-—Acute pneumonia. 
1 vol. of normal washed cells, 
1 ,,  patient’s (pneumonia) serum, 
1, + melanin. j 
1 vol. of washed standard pneumonia cells (from another patient), 
1, patient’s (pneumonia) serum, 
ily a) cimelanin. 
In all these three observations, it will be seen that the washed pneumonia 
cells are doing more work than washed normal cells in the immune serum of 
three different patients, the most marked difference being that where 
pneumonia serum was selected. 
