274 Veterinary Medicine. 



The symptoms may be simulated by those of some other 

 diseases. Thus the bitch which has been exhausted by lactation 

 may show delirium with taciturnity and a disposition to snap. 

 The dog, which is habitually struck or threatened by passers by, 

 may acquire a sinister look and a disposition to bite on every 

 occasion. The presence of a bone or other foreign body fixed 

 between the upper molars, and various injuries of the jaws, teeth 

 or throat may cause inability to swallow, change of the voice and 

 a morose disposition and expression. In such cases there may be 

 vomiting, rubbing the jaws with the paws as if to disengage 

 something and salivation, but there is neither delirium, fury, 

 muscular weakness nor paralysis. In paralytic rabies on the 

 other hand, along with the open mouth and drivelling saliva, 

 there is no disposition to paw the mouth nor face, the buccal 

 mucosa is not simply red but of a deep violet, and there is at- 

 tendant weakness or paralysis of the hind parts. 



Galtier has seen inability to swallow and dropping of the lower 

 jaw from violent stomato-pharyngitis, and from dislocation of the 

 maxilla. 



Great tenderness of the skin from inflammation due to blistering 

 or caustic agents or from rheumatism may cause such alert appre- 

 •hension and disposition to bite in self defense that it may simulate 

 hypersesthesia of rabies. 



From pharyngeal anthrax and violent angina, rabies is distin- 

 guished by the extreme exaltation of the special senses, the 

 marked hyperesthesia and reflex excitability, and, as in the 

 other diseases mentioned, by the perfectly lucid intermissions. 

 Epilepsy is not to be roused by sudden noise, movement nor 

 attempts to swallow, it is not associated with hypersesthesia and 

 in the haut mal the spasms affect the muscular system more gen- 

 erally. A disposition to bite, and spasms and other nervous 

 symptoms, resembling to some extent those of rabies, have been 

 seen in cases of pentastoma in the nasal sinuses, cysticercas in the 

 brain, filaria immitis in the blood, nematodes, and taenia in the 

 bowels, and auricular acariasis, but there is no such hallucination 

 nor visual delusion, no alteration of the voice, no cutaneous 

 anaesthesia, no exalted reflex excitability. Cadeac finds rabiform 

 symptoms with disorders of the special senses in animals dosed 

 with various essential oils, but the odor of these essences about the 

 mouth and in the breath would serve to distinguish. 



