PERUVIAN BARK.' 
This observation gave rise to many compara- 
tive experiments.; and, in July 1782, Dr. 
Saunders published his account of this Red 
Bark, The learned and ingenious author, in 
this respectable work, informs us that the 
Small Quill Bark used in England, is either 
the Bark of young trees, or of the twigs or 
branches of the old ones; and that the large 
Bark, called the Red Bark, from it's deep co- 
lour, is the Bark of the trunk of the old tree. 
In confirmation of this. Dr. Saunders mention?, 
that a Mr. Arnbt, who had himself gathered 
the Bark from the trees in Peru ; and Monsieur 
Condamine, who gives an account of the tree 
in the Memoirs of the Academy of Sciences 
at Paris in 1738 ; both of them assert, that 
taking the Bark from an old tree effectually 
kills it, but that most of the young trees which 
are barked recover and continue healthy; for 
these reasons, they add, the Spaniards now 
V>ark the younger trees for foreign markets ; 
though they still import into Spain some of 
the Barks of the old trees, which they esteem 
much more efficacious than what is procured 
from the young. These accounts lead Dr. 
Sannder^. 
