DESCRIPTION OF PLATES II AND III. 



Various forms of malarial parasites: Figs, i to 10 inclusive, tertian 

 parasites; Figs, n to 19 inclusive, quartan parasites; Figs. 20 to 26 

 inclusive, estivo-autumnal parasites. 



i. Normal red blood-cell. 2. Young tertian ring. 3. Large ter- 

 tian ring. 4. Half -grown tertian parasite. 5. Infected cell showing 

 Schiiffner's dots. 6. Adult tertian parasite. 7. Beginning sporula- 

 tion. 8. Sporulation completed. 9. Tertian microgametocyte. 10. 

 Tertian macrogamete. n. Young quartan ring. 12. Older quar- 

 tan ring 13. Quartan band. 14. Older quartan band. 15. Full- 

 grown quartan parasite. 16. Mature parasite with divided chromatin. 

 17. Sporulation completed. 18. Quartan microgametocyte. 19. 

 Quartan macrocyte. 20. Young estivo-autumnal ring. 21. Large 

 estivo-autumnal ring. 22. Mature parasite. 23. Sporulation com- 

 pleted. 24. Estivo-autumnal microgametocyte. 25. Estivo-autum- 

 nal macrogamete. 26. Estivo-autumnal ovoid. 



(From Deaderick, "A Practical Study of Malaria.") 



