Smithsonian Report. 1937. — Kazwff 



Plate 12 



ring photomicrograph 



A Mass of streptococci have been Introduced into the Blood (at Left) 

 AND a Mass of Diphtheria bacilli (at Right). 



1. The leucocytes (little white points'! cmiinience to arrive ami surround the microhian mass; 2, six hours 

 later, the masses are completely encircled and stilljother leucocytes continue to arrive; 3, six hours later, 

 the diphtheria bacteria are destroyed, the streptococci still resist; the mass at the right is dislocated. 



