40 OBSERVATIONS on 



mortar, and afterward evaporated it to the 

 confidence of an extrad. He afiifted in the 

 procefs, from whence his head feemed much 

 affedted. He placed a grain and a half of 

 the extraft upon his tongue, and fufFered it 

 to diffolve. Although it produced a very 

 naufeous tafte, he fwallowed it. It occafioned 

 no particular effeds, and thence he concluded 

 it might, at leaft with fafety, be given to 

 patients. In looking over the writings of 

 medicinal authors, he found they all agreed 

 in the affertion, that thorn-apple difordered 

 the mind, caufed madneft, and convulfions. 

 Ey the introdudion, however, of a new mode 

 of reafoning, the Dodor made the following 

 inference : that, as thorn-apple, by diforder- 

 ing the mind, caufed madnefs in found per- 

 fons, it was probable, by difturbing and 

 changing the ideas and common fenfory, it 

 might bring the infane, and perfons deprived 

 of reafon, to' a found ftate of mind : and by 

 a contrary motion, remove convulfions in the 

 convulfed. 



Dr. Storck, from this theory, proceeded 

 to pradice in the hofpital at Vienna, and 

 publilhed feveral cafes wherein extrad of 



thorn* 



