5$i 
the quilled bark in common ufe, &c. It 
was 
mely refT 
and gave evident proofs of its being the quill of the larger red bark 
which was in the fame cherV' If the pale and red bark „^ 
the produce of the fame fpecies of Cinchona, the latter differin 
fr 
.illy 
he former only by acquiring greater maturity, we mould find the 
deepnefs of the colour of the pale bark to correfpond proportionably 
with its thicknefs or the fize of the quill, which is certainly not 
the cafe. The Cinchona Caribasa is defcribed. and figured 
Jacquin a and Dr. Wright ; b it grows in. Jamaica, where it is called 
the Sea Side Beech. According to Dr.. Wright, the bark of 
is not lefs efficacious than that of the Cinchona of Peru, for which 
it will prove an ufeful fubftkute y but by the experiments of Dr. 
Skeete it appears to have lefs aftringent power. c The Cinchona 
floribunda, or bark tree of St. Lucie, a figure of which we find in 
PhH.Tranf.alfo in Roller's Obfervations fur la Phyfique, affords a bark 
which is likewife faid to have been ufed with advantage : but not- 
withstanding all that has been written to eftablifh its medicinal 
character,* 1 it feems to us greatly inferior to that of the other fp 
of this genus. In its recent ftate it is considerably emetic and ca- 
thartic ; properties, which in fome degree it retains on being dried ; 
fo that the flomach does not bear this bark in large dofes, and in 
-. ^ \ 
fmall ones its effects are not fuch as to give it any peculiar recom- 
mendation. Several fpecies of Cinchona have lately been difcovered 
Santa Fe, yielding barks both of the pale and red kind ; and which 
from their fenfible qualities, are likely upon trial to become equally 
ufeful with thofe produced in the kingdom of Peru 
At prefent, the ufe of the bark is chiefly confined to the pale and 
red kind; and the nearer the former refembles the latter, the more it 
is efteemed* 
" The Peruvian Bark yields its virtues both to cold and boiling 
water; but the decodion is thicker, gives out its^tafte more readily, 
d 
Jmer. picl. tab. 23. b PhikTranf. Vol 67. c Exper. p. 339. 
See Kentijh. Exp. and Obferv. on- the- Peruvian Bark. Davidfon in Phil. Tranf 
Vol. 74. andTranf. of the American Phil. Soc. Vol. 2. Mallet in Mem. fur U £h 
de la Martinique, &c. 
See Memoria Difjerta%ione fopra la nuova China del regno de Si. Fe, &c 
No. 4 
and 
