CHAPTER XVIII. 



DISEASES OF THE NERVOUS SYSTEM. 



General remarks. Rabies canina, or hydrophobia. Causes. Geogra- 

 phical distribution; symptoms. Dumb and barking rabies. Post- 

 mortem appearances. Rabies in the horse, ox, sheep, pig, and cat. 

 Epilepsy ; its symptoms. Dr Brown-Sequard's researches on epilepsy. 

 Description of convulsions induced artificially. Treatment of epilepsy. 

 Catalepsy in the dog ; in a wolf ; in the horse. Chorea, or St Vitus's 

 Dance. Dr Todd's views. Symptoms. Treatment. Tetanus. Trau- 

 matic and idiopathic. Symptoms. Nature; treatment. Diseases 

 of the brain. Vertigo. Congestion. Megrims. Erroneous views 

 commonly entertained on this subject. Symptoms. Prevention. 

 Encephalitis phrenitis, or inflammation of the brain. Meningitis, or 

 inflammation of the membranous coverings of the brain. Difficulty of 

 distinguishing inflammation of the brain from that of its meninges. 

 Causes and symptoms of encephalitis in cattle. Encephalitis in 

 the horse. Treatment. Apoplexy, or extravasation of blood. Coma. 



Immobility, or sleepy staggers. Softening. Induration. Atrophy. 

 Hypertrophy. Dropsy, or hydrocephalus. Tumours. Diseases of 

 the spinal cord. Paralysis. Hemiplegia. Paraplegia. Congestion. 



Inflammation. Softening. Dropsy. Louping ill in sheep. 

 Trembling. Thorter ill. Cancer of the spinal cord. Diseases of the 

 nerves. Neuritis. Neuroma. 



THERE are several functional and symptomatic diseases of 

 the nervous system in animals which invest the whole 

 subject I have now to consider with special interest, though, 

 as Roll has correctly stated, the list of idiopathic diseases 

 of either the central or peripheral portions of this system 

 VOL. H. 3 z 



