364. Carpenter on Cinchona Bari. 
on the exterior, and of a reddish brown beneath. ‘The pecu- 
liar features of this bark, and by which it may be readily dis- 
é tinguished, ere the following. The epidermis is thick, and . 
may be easily removed from the bark : hence you find im the 
ceroons the greater part deprived of this inert portion. Ithas 
many aseP transverse fissures, running parallels the fracture 
: * 
is wo ining; the interior layer is fibrous, and of a 
yello r3 the taste is slightly astringent, and very bitter. 
This cies < ark will yield a der ae proportion of 
sulphate uininé than any other in onepenes, and 
consequently may justly be esteemed the best. 
2a. Calas plancha, or Flat Calisaya. 
variety consists of fiat thick woody pieces, of a red- 
dish cota colour, deprived of the epidermis, and the inte- 
rior layer more fibrous than that in the quill. This variety 
the former, and consequently is a less desirable article. 
Superior Lowa, or Crown Bark. 
ame of the province and port of Peru where 
this b 
ake vadibriginally discovered. ‘This bark is highly es- 
cinch the royal family, and is that which has been se- 
lected for their use: hence the name of crown bark. This 
bark is in small quills, the long eae edges folding in upon 
themselves, forming a tube about the circumference of a 
goose-quill, and from bale: foot a foot in Jength. Ir is of 
a grayish colour on the exterior, covered with small transverse 
res or cracks; the sage rel surface is smooth, and of 
an orange red; ii is of a compact texture, and breaks with a 
short clear fracture; it is the bark of the ciachoua condamin- 
ia. and is known at Loxa by the name of Casearilia rik 
yet notwithstanding this bark appears to have had the de- 
ide , eaeeae to all other species, analysis fully idioston 
his bark is not equal in medicinal sirength to that deno- 
a Calisaya. This bark is much more astringent, and 
er than the calisaya. This species yields from twen- 
thirty per cent. less quinine than the the former, the 
hich are not so well elanseteriatd, 
yields from twenty to twenty-five per cent. less quinine than 
abtained dand exported. It was in this province. 
CES PAD 
RE OEE ae rey. aw. 5 
/ 
* 
