y 
tf 
); 
^ 
\ 
i> 
'1. 
<k. 
/' 
45 
) 
" jf 
It is exti'emely compafl, and fo heavy as to fmk in water : the 
part is of a pale yellowiih colour, the heart of a dark blackiHi b 
with a greater or lefs admixture of g 
Itf 
cely difc 
fmell 
fs heated 
or 
wh 
yields a light 
fpingj in which 
mil 
any 
s it 
one 
biting th 
pal 
and f; 
chewed, it impreffes a flight acrimony 
Its pungency refid 
in a 
efi 
matter, which is totally extracted by digeftion in red:ified fpirit, and 
partially by boiling water. The auantitv of folid extrad". obtained 
by redified fpirit, amounts t 
wood ; with water, fcarcely 
The quantity of folid extra(fl, obtair 
o about one-fourth of the weight of the 
one-fixth is obtained.* The gu??i, or 
gummy refm, is obtained by wounding the bark in different 
parts of the body oi 
or by what h 
been 
^ j^^gging 
It exudes copioufly from the wounds, though gradually ; and when 
quantity is found 
mulated upon the fever 
ded trees 
hardened by expofure to the fun, it is gathered and packed in fm 
kegs for exp 
greeniih cole 
acrid tafle. b 
This refm 
of a friabl 
J texture, of a deep 
and fometimes of a reddifh hue ; it has a pungent 
ttle or no fmell, unlefs heated. It contains more 
refm than the watery extract made from the wood ; and more gummy- 
matter than the fpirituous extrad.^ — The Guaiacum tree alfo yields a 
fpontaneous exudation from the bark, which is called the native g 
d is brought to us in fmall 
a 
pi 
eces 
of a bright femipellucid 
rhe 
appearance, and differs from the former in being much purer 
Bar^ contains lefs refmous matter than the w^ood, and is confequently 
a lefs powerful medicine, though in a recent ftate it is ftrono-W 
cathartic. 
medicinal ufe, far excels the bark 
The Fruk^ (fays a late author) 
(( 
purg 
and 
to 
for 
. A decodion of it has been known 
to cure the venereal difeafe, and even the yaws in its advanced ftage, 
^ Lewis's M. M. 330. f Des Marchals, Voyage enGuinee & Cayenne, torn. -?. 
p. 246. " The Gum, or rather the refin of this plant, tranfudes frequently of its own 
accord, and may be feen concreted on many parts of it at all feafons of the year ■ but 
It IS generally found in greater abundance where the bark has been cut or W'ounded '* 
Jam. 226 
S 
( 
Manch 
ee 
wine or rum. Th 
r A p ■ 
gives a greenifh caft. Long, 1. c. 
724 
Illy detected by diiiolvmg a little in fpirit of 
hitifii or milky tinge ; but the Manchineal 
Mouch advifes a fev/ drops of Spirit, nitri 
be 
ftriae, &c 
Vide Crell's Chem. Journ. P 
Long, 
appear 
1. c. 
t3 
without 
X 
/ 
y 
/ 
y 
/ 
