110 
identical. Plehn considers that, if the parasites encountered in Oriental 
sore have any relation to trypanosoma, this has not yet been demonstrated. 
Christophers, James, and also Rogers conclude that the organisms 
found in Delhi sore can not be distinguished by microscopical examina- 
tion from those obtained from the spleen and other organs in certain cases 
of splenomegaly and kala-azar. However, James adds that since, on the 
other hand, the parasites met with in the Punjab are apparently capable 
of producing only the comparatively mild local disease known as Delhi 
sore, while those in Assam cause only the dangerous general affection 
known as kala-azar, many interesting questions are raised ; as for example, 
whether the parasites of Delhi sore and of kala-azar, though obviously 
belonging to the same class, are of different species. He further believes 
that the evidence adduced points to the fact that, even when numerous 
parasites are present in Delhi sore on the skin for a long period, no 
general disease, such as kala-azar, results. 
The parasites which I have encountered and described in the first case 
are clearly not identical with Wright bodies, as may be seen by comparing 
Wright’s photomicrographs with those from my sections. As to their 
nonidentity with the bodies described by Marzinowsky and Bogrow, I can 
not be sure, as the photomicrographs of these authors do not very 
distinetly picture the forms they encountered. However, from their de- 
scriptions of these bodies I would suppose them to be different. On com- 
paring my photomicrographs with the illustrations of James, differences 
are also seen to exist. However, Wright’s bodies and those of James 
would hardly be considered identical, if judgment is to be made from the 
illustrations. The organisms encountered in my sections simulate some 
of the forms occasionally seen in Leishman’s specimens, one of which 1s 
illustrated in fig. 11. However, when compared with the majority of 
his parasites (fig. 13), one sees very striking differences. ‘The distinc- 
tions between Wright’s and Leishman’s bodies are also very evident: 
while in specimens of the forms, which Rogers has very kindly sent me, 
I could not certainly identify his organisms with those of Leishman. 
The bodies present in my sections simulate more closely some of those 
pictured by Marchand and Leidingham in their recent article; but it is 
doubtful whether they are identical with these. Plehn’s article contains 
no illustrations. 
Christophers noted that the bodies which he encountered had a very 
sharp outline and seemed to possess a distinct and comparatively resistant 
cuticle, while James states that they appear as if provided with a definite 
capsule. Bently also refers to a well-marked body-wall or resistant 
capsule. 
Allusions have already been made to the opinion of some observers, 
who have considered the protozoa encountered in cases of splenomegaly, 
kala-azar, and Oriental sore as either the developmental forms of trypa- 
nosoma or those of a closely related species, or indeed as forms of sporozoa. 
