32 



cell, they are, probably, simple tertian or quartan 

 If, on the contrary, the temperature is low and 

 the febrile attack finished, these forms correspond 

 to fully developed mahgnant tertian parasites. 



icyUa 



Zva.>{a7h 



CyescenC 



Fig. 4. The three species of Malarial Pavasites 



The large malignant tertian rings have a 

 characteristic appearance. They are oval, with a 

 thicker layer of protoplasm (blue) opposite the 

 nucleus (red). 



3. Large forms, with considerable blue 

 protoplasm and with pigment granules, are, prob- 

 ably, simple tertian or quartan. 



