420 



The '' Oriental Sore " as observed in India. 



[part II- 



by a scab, softened by the application of a poultice. These particular sores had 

 existed from six to eight months. They are seen to be slightly elevated, and the 

 scab sub-divided into little areas, and the whole surrounded with a glistening pinkish 

 areola. Although in these particular instances the sores are circular, it may be 

 mentioned that the other sores on this sepoy's body — on the elbow and hip — presented 

 a more irregular outline. 



When the crust which forms over sores of this character is carefully elevated, 

 the raw surface below it will be found, as a general rule, to consist of numerous 

 pinkish nodules of vascular tissue, the tips of which are very commonly indicated by 

 the existence of dark specks visible to the naked eye. In some cases the sores look 

 as if they had been peppered over with such little granules. The microscope reveals 

 that the darkly pigmented particles are due to minute extravasations of blood, the 

 corpuscular elements of which have for the greater part become broken up. 



On drawing the margins of a thin cover-class very gently across the sore for the 



Fig.16. — Cells from the free surface 

 of a " Delhi sore " x 850. 

 (Hartnack's Obj. No. 9 — immer- 

 sion.) 



Fig. 17.— As Fig. 16, after the addi- 

 tion of acetic acid x 850. 



Fig. 18. — The nuclei which have 

 become free owing to the de- 

 structive action of acetic acid 

 on the corpuscles in Figs. 16 

 and 17 x 850. 



purpose of scraping off a little of the moistened surface for subsequent examination, 

 it is seldom that any pain is complained of, nor does haemorrhage usually ensue. 

 The secretion thus removed and submitted to microscopic examination is found to 

 contain a few red blood corpuscles and a large number of granular, lymphoid cells 

 averaging from ^VV (== '006 mm.) to g^VV (= "008 mm.) of an inch in diameter 

 (Fig. 16). 



Liquor 'potassoe dissolves these cells completely. Acetic acid, however, clears 

 up the cells and brings to view the existence of either one, two, or more nuclei 

 (Fig. 17). After prolonged action of the acid the corpuscles will be found to have 

 become in great part broken up, the nuclei alone remaining to mark the site 

 occupied by the corpuscle (Fig. 18). 



Occasionally yellowish-white little bodies of about the size and form of millet 

 seed may be detected, and may be readily picked out with a hand lens. They 

 average about ^V' (=" '4 mm.) in length by y^V' (= '25 mm.) in width. This is 

 the average of three measurements. They are of somewhat shaggy outline, and may 

 be crushed between the cover-glass and the slide by the application of a little, firm 



