Diseases of the Eyes and Ears. 227 



from entering the water, absolute cleanliness of the ears, 

 with repeated application of suitable remedies, and, 

 meanwhile, securing the ears from damage by flapping 

 by means of a suitable cap or bandage. Diligent atten- 

 tion only will be rewarded by improvement and cure. 

 The best applications are the ointments of carbonate or 

 oxide of zinc, applied once or even twice a day, after 

 the ears have been carefully syringed, or " mopped out " 

 by means of a small piece of sponge on the end of a 

 stick, " Sanitas " Fluid forming an admirable agent for 

 purifying and stimulating the parts to healthy action. 

 In simple Otitis a diligent use of the Fluid, with a dose 

 of laxative medicine will be probably all that is required. 

 The fever of Internal Canker is also beneficially treated 

 by means of a laxative, as the castor-oil mixture, or, if 

 unusually severe, a saline cathartic may be called for. 



External Canker is the term used to denote the 

 diseased changes which take place on the lower margins 

 of the ear-flaps. As already pointed out, the affected 

 animal shakes his head violently, by which the ends of 

 the ears are caused to strike the sides of the face and 

 top of the head, or the collar, if such is worn, with 

 violence. They are bruised and inflamed \ shortly 

 swelling, thickening, and ulcerative changes follow, and 

 the disease from the first assumes an obstinate or chronic 

 character. As these conditions arise from the irritation 

 due to the existence of Internal Canker, that disease 

 must receive appropriate attention. The flaps of the 

 ears in recent cases may be first cleansed from all 

 accumulations of dried pus, dirt, &c., and afterwards 

 covered with an application of "Sanitas " jelly, calamine, 

 or oxide of zinc ointment. Oldei-standing cases may 

 call for the application of the nitrate of silver to stimu- 

 late healthy healing power, the ears being secured from 

 injury by means of a cap properly fitted and secured 

 over the head. 



Abscess of the Ear-Flap, or Blood Abscess, is 

 large, painful swelling, of sudden appearance, due to 

 bruising by violent shaking of the head. The tumour is 

 tense, but is found to contain a yielding substance within, 



