20 



FIG. 2 





 <u 



. 



10 



/ ^- 



f 



;; 



O 



13 



11 



-v 











i 



12 



k">N 



8 



Fig. 1. Tertian Malarial Plasrnoclium. Staiiied by Oliver''s 

 Modification of Wright's Stain. (After Craig.) 



I to 4. Ring forms of tertian parasite. 



5. Ring form. (Conjugation form of Ewing.) 

 to 10. Pigmented organisms. 



II to 14. Nearly full-grown forms, showing 



diffusion of the chromatin. 



15 to 17. Segmenting forms within red corpuscle. 



18. Segmenting forms after destruction of red 



corpuscle. 

 19 - Microgamete. 

 20. Sporozoite. 



Fig. 2. Quartan Malarial Plasmodium. Stained by Oliver's 

 Modification of Wright's Stain. (After Craig.) 



1 to 4. Ring forms of quartan parasite. 10 to 12. Segmenting forms of quartan parasite. 



5, 6, 7, 8, 9. Pigmented parasites. 13. Segmenting stage after destruction of red corpuscle. 



NOTE. Chromatin of nucleus stained red; protoplasm stained blue; vesicular portion of 



nucleus unstained. 



