'•"■j\ 





1 



^; 



11 



3 







12 



Fio. 1 



t 



'•:^-^>: 





'0 



,-a* 





''■'C''!l 





*;^''# 

 »j«,*' 





19 





<Cf 



1,S 



13 





14 



17 



20 



Fig. 2 



Fig. 1. Tertian Malarial Plasmodium. Stained by Olivet-'s 

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



I to 4. Ring forms of tertian parasite. 



5, RinK form. (Conjugatinn form of Ewing.) 

 (1 to 10. Pigmented organisms. 



II to 14, Nearly full-grown forms, showinc; 



difTusion of the chromatin. 



1.^ to 17. Segmenting fnrrns within red t 

 IS. Segmenting forms after destrurtin 

 cor]iuscle. 



19. Microgamete. 



20. Sp<.)rozoite. 



oriiusole. 

 1 r>f re<l 



Fig. 2. — Quartan Malarial Plasinodiuni. Stained by Oliver's 

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



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



."., G, 7, S, 9. Pigmented parasites. 13. Segmenting stage after destruction of red cor)>uscle. 



Note,— Chromatin of nucleus stained red; protoplasm stained blue; vesicular portion of 



nucleus unstained: 



