DISEASES OF THE NERVOUS SYSTEM. 369 



our Other patients, but decidedly he is so ; and where they 

 have pressed upon the braiii, there has been injection of the 

 membranes, and sometimes effusion between them. 



" In some cases I have found effusion without this external 

 pressure ; and in some cases, but comparatively few, there 

 has not been any perceptible lesion. Hydatids have been 

 found in the different passages leading to the cranium, but 

 they have not penetrated " (?). 



MENINGITIS. 



Meningitis, or inflammation of the coverings (meninges) of 

 the brain, in which those enveloping the spinal cord gener- 

 ally become involved, is occasionally seen in the dog. It is 

 usually associated with epilepsy, especially if the seizures are 

 frequent and protracted. At the present time I have a well- 

 marked case under treatment, the subject being anagedcolley 

 sheep-dog. • 



The following were the symptoms presented on my first 

 seeing him : eyes deficient in lustre and somewhat vacant, 

 lids frequently closed, head drooped, clonic spasm of the 

 muscles of the lower jaw, the latter repeatedly closing with a 

 sudden click. The animal always lay on the left side ; when 

 walking he inclined the same way ; hurried, reeling locomotion, 

 tongue loaded with fur, nose dry, hot and stuffy, excessive 

 drowsiness with occasional spasmodic twitchings, pulse fre- 

 quent and small, appetite moderately good, with a preference 

 for liquids. 



I inserted a seton at the back of the head, ordered milk- 

 diet, and prescribed 



Nux Vomica Y^ grain. 



Quinine Sulph i grain. 



Ferri Sulph 5 grains. 



This was given in a dessert-spoonful of sherry, three times a 



