12 On the Medical Properties, &c. 



in my opinion, deserve a conspicuous station among 

 the articles of the Materia Medica. 



I am, 8cc. 



W. Darlington. 

 Chester- County (Pennsylvania), 

 Dec. 5th, 1805. 



NOTE. 



For an account of the medical properties of this 

 species of Eupatorium, the reader is referred to the 

 First and Second Parts (especially the latter) of the 

 Editor's Collections for an Essay towards a Materia 

 Medica of the United-States, where the influence of 

 this common plant in the cure of a peculiar herpetic 

 affection, called the " James-River Ring- Worm," is 

 particularly noticed. Since the publication of the 

 work referred to, the Editor has received much addi- 

 tional information concerning the efficacy of the plant 

 in this disease, which was formerly extremely com- 

 mon in some parts of Virginia, especially, it is said, 

 on the upper streams of James-River. 



III. Case of Epilepsy, successfully treated by the Nitrate 

 of Silver. In a letter to the Editor, from P. K. 

 Rogers, M. D., of Philadelphia. 



Dear Sir, 



I DERIVED, from sources of which I need 

 not remind you (your lectures and hospital practice), 



