Diseases of the Nervous System. 



247 



Youatt has known instances in which the first symptoms 

 have only become manifest after from five to seven months, 

 and he never knew of a case occurring before seventeen 

 days intervening. Other authorities have related cases in 

 which the disease was developed within from three to ten 

 days after contamination. Of nine cases which Peuch could 

 rely upon, the symptoms appeared after the bite, in each, at 

 an interval of 95, 88, 35,26, 24, 22, 18, 15, and 10 days> 

 respectively." 



"In 1863, Renault reported that of 68 dogs inoculated 

 experimentally or bitten, the malady was developed in : 



I from the sth to the loth day. 



7 from the 4Sth to the 50th day. 



" In Saint Cyr's 87 cases of confirmed rabies in 1865, there 

 wereonly26 thedate ofwhose inoculation could be positively 

 ascertained. In these the latent period was : 



"Bouley has known instances in which the latent period 

 was twelve days and seven months, though they were rare ; 

 it was usually fro.m six to twelve weeks. 



" According to Haubner, in 200 cases the appearance of 

 the disease within two months was 83 per cent; three 

 months, 16 per cent. ; four months, i per cent. He 



