1907. | Observations upon Phagocytosis. 175 
and the washed cells, from the same case of puerperal fever as the preceding, 
were tested against normal cells in the patient’s serum. 
Casr.—Puerperal fever ; Streptococcus pyogenes ; death with pyzmia. 
1 vol. of normal washed cells, 
Bea's, i serum, 
1 ,, colon bacilli. 
1 vol. of normal washed cells, 
1 ,,  patient’s serum (puerperal fever), 
1 ,, colon bacilli (not from patient). 
fndex... 2.2... 0°8. 
1 vol. of normal washed cells, 
1 ,,  patient’s serum (puerperal fever), 
1  ,, colon bacilli (not from patient). 
1 vol. of patient’s washed cells (puerperal fever), 
ere A serum, 
1 ,, colon bacilli (not from patient). 
Index 22.2.0. 0°3. 
This observation shows that the patient’s cells (streptococcal infection) 
are less active in the patient’s serum, against colon bacilli, than are normal 
cells in the patient’s serum against colon bacili. The result corresponds 
closely with those which precede it, in which a colon serum was used in place 
of the above patient’s serum, but with the same puerperal patient’s cells. 
Summary and Conclusions from the foregoing Groups of Observations placed 
under Question 5. 
In the observations where melanin was presented to normal washed cells 
and to a patient’s washed cells, in the patient’s own serum, or in the serum 
of another patient suffering from another infective disease, the indices run :-— 
eo mele w se TAL 1p ay DAN 8:3 (Gb, 
In heated rmmune serum, the washed immune cells against normal washed 
cells give indices of :— 
Oo. en Oe a | 
In heated normal serum, the index, in the single observation made, was 2. 
In the majority of the cases, the patient’s cells take up more melanin, or 
more bacilli, than do normal cells in immune serum, whether the immune 
serum be that of the patient or that of another patient suffering from another 
infective disease ; the higher indices run :— | 
2:4, 33, 6°5. 
When the patient’s cells are compared with normal cells in normal serum, 
the indices range from 
0:46 to 2°9. 
