POLL-EVIL. 187 



means of Salmon's patent truss, first on the duct, afterwards on the 

 gland. That failing, I tied the duct, at where it crosses the lower bor- 

 der of the jaw : the only effect was to distend the canal, and cause it to 

 give way where the ligature was applied, I next had recourse to seton, 

 but without any good result. As for the cautery^ and other means, all 

 had been repeatedly employed before the horse came into my possession. 

 Professor Coleman saw the animal, and recommended extirpation of the 

 gland. At length I determined to treat this animal after the manner tried 

 upon the former case. I cast the horse, and (with a view to rendering my in- 

 jection more effective) cut down on the duct, and made an opening where 

 it emerges from the substance of the gland. This done, I threw in my 

 injection, consisting of the ingredients I had used before, but of double 

 quantity. The injection was detained for a minute within the gland, 

 and then suffered to run out; most of it did return. This was followed 

 not, as in the other case, by moderate tumefaction, consolidation, and 

 obliteration of the glandular structure, but by violent inflammation and 

 slougJiwg. The whole of the gland, by degrees, came away, leaving a 

 deep chasm to be filled up by granulation : a process that was not com- 

 pleted until the fifty-eighth day from that on which the operation was per- 

 formed. In due course, the cure was perfect ; no gland whatever remain- 

 ing. My object, however, viz., the production of scirrhus, had been 

 frustrated. The horse continued in my possession two years afterwards ; 

 appeared nowise inconvenienced by the loss ; nor would any one imagine 

 that a parotid was lost ; that the portion of duct between the angle and 

 border of the jaw always remained enlarged. 



Were I to have another case to treat of this description, I would use 

 the same kind of injection, but reduce its strength by at least one half: 

 that is to say, I would mix d^ubl^^he^^uanjdt^ of water with the same 

 quantities of the two other ingredients. 



POLL-EVIL. 



Ill the ' Farrier's Dictionary^ Ave find poll-evil defined to be 

 '* a large swelling, inflammation, or imposthume in the 

 horse's poll or nape of the neck, just between tlie ears 

 towards the mane :" than which it seems difficult to convey 

 a clearer notion of the nature and situation of this loathsome 

 malady.^ Some years ago, the disease came frequently 



' The French call it mal de taupe — mole-evil — from the tumour being in form 

 like a mole-hill, as well as from the sinuses being compared to the workings of 

 the little animal. 



