The results obtan^ed here are in strict agre'Tmt-nt with 

 .he findin.^s ^;re^'iousl ■ revieu'ed. There i.-. sometimes, tiiough 

 by no means in eveiy case, a depressed opsonic activity against 

 the si^ecific infeotin • organism. Nowhere, however, even in the 

 most chronic oases, is there any discoverable decrease in the 

 phagocytic effectiveness against an^r bacteria not concerned 

 in the primary infection. The downward variations in the opsonic 

 index for these organisms are always within the possible range 

 of experimental error. 



(51; 



