198 The Management and Diseases of the Dog. 



" In that form of the disease to which I specially refer — 

 where a polypoid excrescence follows and accompanies the 

 uluceration of caries— if a period of three weeks or a month 

 be allowed to elapse betwe^en the first exhibition of the 

 discharge and the examination of the meatus, it may be 

 found that the vegetation has attained a considerable size, 

 and the discharge has become more and more profuse and 

 bloody. The extent of bloody discharge and its fcBtidity, 

 will much depend on the nature of the tumour, and the 

 original tissue of the meatus that may be affected. If there 

 is much blood mixed up with the discharge, then in all 

 likelihood there will exist a soft and vascular polypus, pro- 

 duced from the more vital fibro-cartilaginous structures of 

 the meatus; and should the smell be great, and the 

 discharge little tinged with blood, then the original 

 disease will be found to exist in the osseous portion 

 of the tube, and the polypus, if it does exist, will" be of the 

 chondromatous or cartilaginous kind." 



Treatment. — This should consist, if the growth is in the 

 outer half of the meatus, and within reach, in removal by 

 torsion, ligature, or excision, and the subsequent application 

 of caustic. If near to the tympanum, such an operation 

 would be attended with danger, and the potassa cum calce, 

 as recommended in human surgery, is best adapted to the 

 case. The injection ot mild astringents should, in the 

 course of a few days, follow either measure. 



DEAFNESS. 



Deafness in dogs may be congenital, * or result from 

 obstruction in the auditory passage, caused by disease, 

 injury, the lodgment of water, or it may result from 



* I recently examined a white terrier, belonging to a clergyman, in 

 which the sense of hearing had never been recognised— being, in fact, 

 congenital, and the animal was destroyed in consequence. 



