272 THE MANAGEMENT AND DISEASES OF THE DOG. 



as the dog recognized his master's voice, and would come to 

 him when called ; this he would do slowly and carefully, 

 apparently using his sense of smell as his guide. The owner 

 was asked if the animal had ever received a blow upon the 

 head, and in reply he stated that he had reason to believe he 

 had met with some injury in the stable, he thought from one 

 of the horses. The owner had had the dog examined at 

 Oxford, and afterwards brought him to London for our opin- 

 ion. After the examination we felt satisfied that the dog was 

 suffering from some diseased condition of the brain, and that 

 his loss of vision was due to this cause. It was noticed that 

 the dog was steady and cautious in his movements, turning 

 neither to the right nor to the left, yet he seemed perfectly 

 obedient to his master's call. For the purpose of treatment 

 the dog was removed to our infirmary, and general depletive 

 measures was used at first ; mild doses of aperient medicine 

 were given occasionally, and some improvement appeared to 

 be produced, as the animal could, after a time, see with the 

 left eye ; he recognized his feeder, and ran after a cat that 

 accidentally got into his box. This was so far satisfactory, as 

 indicating that his sight had partially returned ; he ate his food, 

 and took fluids freely, but on the 15th inst., after his meal, he 

 vomited, and seemed much prostrated. The attendant de- 

 sired us to look at him, as he thought he was considerably 

 worse ; he was found lying on his left side, with the head 

 protruded and the nose pointing upwards. There was a rigid 

 condition of the muscles of the neck, the pulsation of the 

 heart was feeble^ and it was apparent that the animal's end 

 was approaching. He died at five o'clock, p.m." 



Post-mortem Examination. — On removing the calvarium it 

 was apparent that effusion had taken place into that part of 

 the arachnoid sac which is reflected over the left hemisphere; 

 a slight puncture, made by the saw while the bone was being 

 removed, was followed by the forcible expulsion of pus-like 

 fluid. The dura mater was dark-red in color, and came away 

 from the bone very easily ; the inner surface of the portion 



