ILLUSTRATIONS 



Plate I 



Lower end of ileum showing hyperplasia of solitary follicles and Peyer's 

 patches in status lymphaticus. (Drawing by Castro.) 



Plate II 



Organs of the neck showing hyperplasia of faucial and lingual tonsils and 

 lymphoid tissue in the pyriform fossae in case 2. (Photograph by 



Cortes.) 



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