PLATE VIII 



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KaLA- AZAR 



1—6. Parasites found in chronic case (3 years' duration) : 1. Typical parasite ; 2. Slightly degenerate enlarged 

 parasite ; 3 — 6 are believed to be further stages in the degeneration of the parasites within the body. 



7 — 9. Forms only seen in chronic cases — apparently parasites in which the hlepharoplast resembles in size and 

 staining the macronucleus, unless it be a divided macronucleus. 



10-11. Degenerate forms found in very chronic case (5 years' duration). 



12—14. Degenerate forms found in case (? 6 months' duration). 



These forms were found frequently in long-standing apyrexial cases, which presented typical symptoms and signs 

 of kala-azar, and are believed to represent degenerative processes occurring in the parasites within the body. 



15 — 16. Parasites similar to those depicted in figs. 1—14. 



17. Parasites showing curious division of hlepharoplast. 



18. Parasites found in leucocyte in the peripheral blood. 



19 — 22. Leishman parasites, after one injection of orsud.an, showing marked vacuolation. 



j'^ objective. No. 8 ocxttar 



