382 CLINICAL VETERINARY MEDICINE AND SURGERY. 



when turning a corner, suddenly swerving to the right or left, and 

 nearly or completely falling over. There was marked disinclination to 

 remain on any elevated spot. If placed on a table the animal ap- 

 proached the edge, and after deliberating for a moment (all its move- 

 ments were very deliberate) slowly glided off towards the ground. It 

 was, however, unable to resist the shock, and fell over almost helpless. 

 When placed in a basket it appeared comfortable, seldom changing its 

 position, and did not move even when the basket was slowly inclined 

 until it lay with the head undermost. It could, however, still walk 

 fairly well in a straight line, could ascend and descend stairs without 

 falling, and could spring over low obstacles. The bowels and kidneys 

 acted regularly, the bladder was under control, though the innervation 

 of the rectum seemed somewhat defective, causing defecation to be 

 difficult. 



The pupils responded readily to light, and vision seemed perfect, 



Fig. 38. — Chylous fluid, freshly withdrawn. 



though the animal only winked languidly when threatened. There was 

 no change in the cornea. 



The knee-jerks, as tested by Professor Victor Horsley, were fnot 

 exaggerated. 



Diagnosis. — Ascites, consequent on chronic peritonitis, probably 

 complicated with cerebellar tumour. The cat was killed with chloro- 

 form. 



Post-mortem Examination. — The skull was exceptionally well deve- 

 loped, the occipital and parietal crests being especially prominent and 

 the diploe dense. 



On opening the cranial cavity about half to three quarters of an 

 ounce of a glairy reddish serous liquid escaped. It was accumulated in 

 greatest amount about the falx cerebri, the posterior aspect and base 

 of the brain. 



The meninges were infiltrated with it, and the liquid continued to 

 ooze away for some minutes. The meningeal vessels were congested, 

 and there was well-marked meningitis. The brain seemed to have 

 suffered little change. 



