212 MAD DOGS. 



unworthy the consideration of the faculty, namely, 

 that nulla animalia praeter canes et alia ejusdem 

 generis initu facto, inter se manent conjunctas, and 

 never shew any evident marks of perspiring 

 through their skin ; whether the feline, which are 

 nearly allied to the canine, should be included in 

 this last observation, I shall leave to others to 

 determine. I have never seen an instance of 

 their communicating hydrophobia, but many cases 

 are recorded of their having done so. If my ob- 

 servations are just, respecting dogs perspiring, or 

 rather discharging the perspirable fluid chiefly 

 through their mouths, may not that have an in- 

 fluence in confining the communication of the 

 disease to such animals'? With respect to the 

 first cause of this disease, I fear we shall ever 

 remain in ignorance. 



