18 
ions rare and anomal-— 
The different natural orders, or natural families, 
which are pervaded, throughout, with the most stri-_ 
king physiognomonical and anatomical similitude, 
noticed ; and an enquiry into Decandolle’s opinions - 
on the deduction to be made in reference to their 
medical virtues, from these data. These enqui 
ries predicated on our actual experience of coinci 
dence in certain orders or families, and the medi 
Ginal virtues of all the species of the genera pe 
taining to those families. "They 
with the intent to aid the student i 
the analysis of the American | i 
_ 3. The sensible qualities of the substanc 
ployed, have likewise been a fruitful 
adjudging the medicinal virtues. _ Fallac 
the extreme, in many instances, yet in an 
leading to judicious results and investigations. 
4. The absurd doctrine of signatur now 
tally disused. % YS 
__ Definition of the doctrine of signatu est 
ing tokens, and illustrations of it. The his or 
of this doctrine, in the writings of Porta, an ita 
* 
