314 CLINICAL VETERINARY MEDICINE AND SURGERY. 



the diseased skin was disinfected with warm creoHn solution and 

 powdered with starch. 



On the 8th the disturbance due to the acari was markedly dimin- 

 ished, but the two eczematous patches on the inner surface of the fore- 

 limbs were transformed into wounds, which the animal incessantly- 

 licked and gnawed. The discharging surfaces were disinfected and a 

 cotton-wool dressing applied, covering the limbs as high as the 

 shoulder. 



Next morning the dressings were found torn. Fresh ones were 

 applied, which were left undisturbed for three days, when they were 

 renewed. 



After the 15th the animal showed no further epileptiform symptoms 

 nor digestive trouble. 



On the 20th the wound on the left leg was dry ; a portion of that 

 on the right was still moist, but by the 27th it had healed. 



On the 3rd February the animal was cured both of the acariasis and 

 of the eczema. 



Remark. — Acariasis of the ear — the pseudo-epilepsy seen in packs — 

 occurs with some frequency in dogs kept in living rooms. Seldom a 

 year passes without our seeing cases. In that just described the method 

 of contagion remained doubtful. According to the owner's statement 

 the animal was very carefully looked after and never came near other 

 dogs. 



C.—A^OSE AND NASAL CAVITIES. 

 NECROSIS OF THE NASAL SEPTUM. 



15. Seven-year-old entire horse. Entered hospital 29th October, 

 1894. 



Two months before the animal had received a kick on the forehead. 

 The part became swollen, respiration difficult and noisy, and discharge 

 occurred from both nostrils. 



State on Entry. — The passage of air through the nose was obstructed ; 

 even at a distance a roaring sound could be heard. The face was 

 deformed ; over the lower portion of the nasal bones, and extending as 

 far as their extremity, was a swelling which was painful on pressure and 

 equally marked on either side of the median line. Both nostrils 

 discharged a little purulent liquid. On the septum, near the entrance 

 to the nasal cavities, and on either side, was a narrow wound with 

 hardened reddish margins, forming the entrance to a sinus about three 

 inches deep. Higher up — towards the roof of the cavity and on the 

 septum. — could be distinguished an oval prominence, elongated in the 

 direction of the long axis of the head, formed b}' separation of the 

 mucous membrane from the subjacent tissues. Pressure with the finger 

 caused a discharge of greyish pus from the sinus. The submaxillary 

 glands were swollen and hard, the condition being rather more marked 

 on the right than on the left side. 



Diagnosis. — Partial necrosis of the nasal septum. As the animal 

 was useless for work, on account of the difficulty in breathing, we were 

 asked to perform tracheotomy. 



