P R E F A C E. ix 



tics, if the diforder they occafioned 

 there had arrived at a certain degree 

 of violence. 



Poisonous herbs in different con- 

 ftitutions will have various and fome- 

 times oppofite effe6ls. This I fpeak 

 from my own knowledge, having 

 feen the moft contrary fj^mptoms 

 produced in feveral perfons who had 

 taken the fame poifon under equal 

 circumftances. They exhibited a 

 proof, that both the utmofl: irrita- 

 tion, and appearances which indi- 

 cated that the office of the nerves 

 was deftroyed, might arife from the 

 fame caufe working its effeds in dif- 

 ferent conftitutions. 



The vegetable poifons might per- 

 haps be properly feparated into the 

 two following divifions. The firft 



includinor 



