PRINCIPLES OF VETERINARY SURGERY 



559 



slightly magnified, revealed a clear, attenuated stroma 

 filled with black detritus. When magnified 330 diameters, 

 it presented a clear stroma having clear spaces as its limits, 

 that contained pigment deposits. The pigment was found 

 in the connective tissue cells, in which the nuclei were intact. 

 The infiltration, which consisted of brown granules, was 

 more copious around the blood vessels, where it was so in- 







Fig. 70. 



In the Middle of the Stroma, in an Irregular Manner, the Pigment is Seen 



to Invade the Cellular Elements, Some of which Remain Intact (330 



Diameters) . 



tense as to reach the muco-connective fibrillse constituting 

 the network of the growth. 



It will be observed that in the ruminant, melanotic de- 

 posits do not have the same well-determined places of lo- 

 calization as in the soliped. The infiltration afifects all the 



organs. 



Melanosis in Sheep. 



Melanosis is comparatively rare in the ovine species, but 

 is occasionally encountered. Worsley observed nervous 

 disorders traceable to melanotic deposits in the medulla of 



