SNAKE-POISON LITERATURE. 



99 



tude and raala]se,these symptoms recurring every 

 year in the month of April, and lasting a month." 



Dr. Demeurat relates the following instance 

 of a similar occurrence : — " A woman was bitten 

 by a viper in the right forearm, on the 28th 

 May 1824. She suffered at the time from nau- 

 sea and vomiting, headache and chilliness. The 

 arm also became swollen, and a dark red patch, 

 covered by a large bleb, formed at the spot 

 which was bitten. This affection extended 

 across the forearm, and a large quantity of sero- 

 sity exuded daily from the furrows between the 

 bulloe. Beneath the raised epidermis was a 

 thick false membrane. After eighteen months 

 this membrane became black and dry, and the 

 woman tore it off in one piece. The skin be- 

 neath was red, but soon recovered its healthy 

 appearance. This was in November 1826. The 

 next year, on May the 28th, the eruption return- 

 ed, and continued till November. These pheno- 

 Tnena repeat themselves each year, commencing 

 about' the same day." Dr. Demeafat does not 

 say that he, himself, witnessed the phenomena. 

 (" Year Book of Medicine and Surgery," 1863.) 



This annual recurrence of symptoms does not 

 appear to be confined to cases of snake-bite, as 



RecuiTence 

 of peculiar 

 signs after 

 viper-bite. 



Livingstone's 



