756 



PATHOGENIC PROTOZOA 





l 



FlG. 177. SCHIZOTRYPANUM CRUZI DEVELOPING IN TISSUES OF GuiNEA-PIG. 1, 



Cross-section of fibers of striated muscle containing Schizotrypanum cruzi; 2, 

 Section of brain showing cyst in a neuroglia cell containing chiefly flagellated 

 forms; 3, Section through suprarenal, fascicular zone; 4, Section of brain show- 

 ing neuroglia cell filled with round forms. (After Low and Vianna. MacNeal, 

 " Pathogenic Microorganisms, published by Blakiston's Sons & Co.) 



