PATHOLOGY. 309 



vigorous, and its apparent preference for those placed under 

 debilitating conditions of sanitation, seem to point to the 

 asthenic rather than the sthenic state as the more susceptible ; 

 though we cannot assert that this is apparent in all cases, for, 

 as it has been before stated, animals in every conceivable con- 

 dition become affected. 



The somewhat general tendency for abnormal tissue-products 

 in the horse to assume a calcareous character of course is re- 

 cognised, and the production of hard kunkur is reconciled to 

 it ; but this is a very small portion of what has to be ac- 

 counted for. 



The presence of the morbid material (kunkur) in internal 

 organs often found, though by no means invariably, in subjects 

 yielding external manifestations of bursattee, seems, although 

 occasionally involving a considerable portion of the substance 

 of the organ, to be the cause of very little appreciable disturb- 

 ance. They are never, we believe, met with in an ulcerating 

 condition, but tend to go through the different stages of their 

 development to the calcifying process without ulceration ; this 

 disposition seems to be marked in all tumours not in direct 

 contact with the external air. Some observers would suggest 

 that the slight irritation caused by subcutaneous growths 

 induces the animal to so injure itself by biting or rubbing, 

 as to cause abrasion mechanically, and rupture of the out- 

 ward investing structures, already rendered thin by pressure 

 consequent on increase of tumour. 



The manner in which kunkur of the internal organs gains 

 its position is at present only a speculation, and we have no 

 ground whatever in the majority of cases for proving if it 

 be primary, secondary, or indeed independent of other lesions. 

 Morbid Anatomy. — The post-mortem examination of the 

 subjects of bursattee present to us the peculiar product which 

 characterizes the disease variously distributed, and in various 

 stages of its development in the same subject. The general 

 condition of the body will therefore vary according to the 

 number and extent of the sores, and whether they have been 

 allowed to linger on until they are the pitiable objects 

 which may be imagined from a summary of the symptoms 

 given elsewhere. 



The lesions may be found exclusively in connection with 



