194 THE CONTAGIOUS TYPHUS 



say, we have been forced to submit to evidence, 

 and to acknowledge that the present infectious 

 typhus is not the one we require to provide 

 us with the anti-typhoid virus. 



In the same manner as pathologists disagree 

 as to the question, whether the typhus and 

 typhoid fever in man are one and the same 

 disease, so should we long debate, without 

 coming to an agreement, as to that which 

 relates to the typhus and typhoid fever of the 

 ox. We cannot pretend to produce a recon- 

 ciliation between these dissentient schools ; all 

 we desire, is to sum up what observation has 

 suggested to us, on account of the practical 

 and therapeutic interest belonging to the 

 subject. 



Tor ourselves, the typhus and the typhoid 

 fever of the ox are two diseases of the same 

 order, but nevertheless distinct ; and the 

 reasons upon which we ground our opinion 

 are suggested to us by the nature of the in- 

 testinal lesions, the symptoms, and causes of 

 these distempers. 



As we have already seen, the contagious 

 typhus of the ox, at least that of the present 



