CANKER 153 



attention to the subject to enable the master to 

 detect where the mischief arises. 



Remeimes. — Canker is a complaint which ought 

 only to be undertaken by a veterinary surgeon, being 

 exceedingly difficult and tedious in its progress to- 

 wards a cure. 



The first thing which is done in this disease is to 

 cut out the fungus growth ; and besides this it often 

 becomes necessary to use both caustic and the 

 cautery ; and all that portion of the horn which has 

 been separated from the fleshy and bony parts must 

 be carefully removed. Should fresh fungus be gener- 

 ated, it must be got rid of, and means adopted to 

 check its growth, and by proper applicants to induce 

 the secretion of healthy horn. Unskilful veterinarians 

 have been known to inflict severe and unnecessary 

 torture on horses which had canker, by too deeply 

 corroding the parts with caustic, and thus producing 

 a sore. In this complaint gentle exercise is ab- 

 solutely necessary where the disease is confined to 

 the frog and sole of the foot, but moisture is carefully 

 to be avoided. But it will be found that in effecting 

 a cure the processes will be both tedious and painful, 

 in consequence of the necessity of caustic applications, 

 which, however slight, always cause considerable 

 irritation in the parts. 



In this complaint medicine is seldom had recourse 

 to, as it is of little use, the disease being local. But 

 it sometimes occurs that grease follows canker ; in 

 the event of which physic will become necessary, and 

 these will be alteratives and diuretics. 



THRUSH. 



The disease thrush is characterised by a dis- 

 charge which issues from the cleft of the frog and 



