1904.] Bole of Blood Fluids in connection luith Phagocytosis. 133 



B. 



S. B. D.'s heated serum 3 vols. 



A. E. W.'s washed corpuscles 3 „ 



Suspension of Micrococcus Melitensis , 1 vol. 



Phagocytic index (21 P.W.B.C.), 0"9. 



Experiments on the Opsonic Power of Human Blood in 

 Relation to the Bacillus dysentericus (Shiga). 



Experiment 1. 

 A. 



S. B. D.'s unheated serum 3 vols. 



S. B. D.'s washed corpuscles 3 ,, 



Suspension of Shiga's bacillus ., 1 vol. 



Phagocytic index (20 W.P.B.C.), 4*2. 

 B. 



S. B. D.'s heated serum 3 toIs. 



S. B. D.'s washed corpuscles 3 ,, 



Suspension of Shiga's bacillus 1 vol. 



Phagocytic index (20 P.W.B.C.), 0'0. 



Experiment 2. 

 A. 



A. E. W.'s unheated serum 3 vols. 



S. B. D.'s washed corpuscles 3 „ 



Suspension of Shiga's bacillus 1 vol. 



Phagocytic index (20 P.W.B.C.), 5-4. 

 B. 



A. E. W.'s heated serum 3 toIs. 



S. B. D.'s washed corpuscles 3 



Suspension of Shiga's bacillus 1 toI. 



Phagocytic index (33 P.W.B.C.), 0-1. 



Experiment 3. 

 A. 



S. B. D.'s "unheated serum 2 vols. 



S. B. D.'s washed corpuscles 2 



Suspension of Shiga's bacillus 1 vol. 



Phagocytic index (20 P.W.B.C.), 3-6 



