1905.] On Spontaneous and other Phagocytosis. 225 



Serial 

 number of 



the ex- 

 periment. 



Source from 



which, 

 the serum was 

 derived. 



Phagocytic 

 count obtained 



in the case 

 of the heated 



undiluted 

 serum. 



Dilution in 



which 

 the opsonic 



power 

 was measured. 



Phagocytic 

 count in the 



case where the 

 serum was 



heated before it 

 was diluted. 



Phagocytic 

 count in the 

 case where the 



serum was 

 diluted before 

 it was heated. 



Expt. 1 ... 



Pooled serum of 

 six patients who 

 had been inocu- 

 lated with tu- 

 bercle vaccine 



2 '4 



2-fold 

 dilution 



4-fold 



8- „ 

 16- „ 

 32- „ 

 64- „ 



1 9 



2-7 

 1 1 

 1-0 

 0-97 

 0-75 



3 "3 



1-7 



0-6 



0-45 



0-2 



0-08 



Expt. 2 ... 



Serum of a 

 patient (E. M.) 

 who had. been 

 inoculated with 

 tubercle vaccine 



— 



4-fold 

 8- „ 

 16- „ 

 32- „ 



1-5 

 1 4 

 1 6 

 1 -5 



9 



2-7 

 1 -9 

 1 -2 



0-3 

 0-05 



Expt. 3 ... 



Serum of a 

 patient (J. B.) 

 who had been 

 inoculated with 

 tubercle vaccine 



1 4 



2-fold 

 4- „ 

 8- „ 

 16- „ 

 32- „ 

 64- „ 



0-85 

 7 

 0-7 

 0-25 



o-o 



1-5 

 1-5 

 1-6 

 0-2 



o-o 



