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EXPLANATION OF PLATES LIX.-LXL 



All figures were outlined with the Abbe-Zeiss camera lucida, generally using Zeiss 

 2 mm. apochromatic immersion objective and compensating oculars 4, 8, lli (Zeiss). 

 For a tew figures Zeiss I)D objective and Huygeniau ocular 4- were used. 



Plate LIX. figs. 1-16. Lencoci/tzoon lomti. (X ll-OO.) 



From preparations, chiefly heart blood, coloured with Giemsa's stain. 

 Magnification : 1400 diameters. 



Figs. 1-3. Young intracorpuscular parasites. 



4-13. Older parasites in M'hicli the host cell is drawn out into horns or pro- 

 cesses at either end, and its nucleus displaced. 



4, 9, 11, 13. Male gametocytes with hyaline protoplasm. 



5, H, 7, 10, 12. Female gametocytes with granular protoplasm, t'liromatoid 



granules occur around the poles of many of the gametocytes. 

 14-16. Gametocytes in which much of the host cell is absorbed or discardcil, 

 with onh' slight remains of host-cell n\icleus. Figs. 15, 16 fi'oni 

 specimens in the spleen. Fig. 14 from the liver. Such parasilo, 

 however, are not confined to the internal organs. 



Plate LX. 

 Figs. 17-28. Leicrooi/tozoou, Jovati. 



17-22,, L. Invati a.>^ i^een in lil'e. stained with methylene blue. Young parasites, 



showing formation of tailed processes of host cell. X 1000. 

 23-28. Schizogony of L. lovati,a.s seen in spleen smears from grouse. X1400. 



Free merozoites represented in figs. 27, 28. 

 29-40. Spirncliffta Inqopodix, from blood of grouse. X2500. 

 41, 42. HaiiinprolcHs maiisoni. Young parasites in erythrocytes of grouse. 

 X 1800. 



