2. I infused: for three days other sii grains of the 
powders in an ounce of alcohol, cold. The liquor was in a. 
short time tinged’ of a clear-yellow, and acquired a very percep- 
‘tible. bitter and sharp acrid taste, like that of the root wher 
chewed. , During the three days no foam was perceived ; not- 
withstanding the liquor being shaken. The tincture, when diluted’ 
in distilled water, did. not become turbid; nor was there my per~ 
ceptible sediment. 
The alcohol dissolved half the weight of the pewaets, and 
they remained insipid. The excess in weight of the powders im 
the former dissolution, shows that the alcohol could not dissolve- 
the mucilage that was soluble by the water. 
3. I infused -half an ounce of the powders in four pints of cold! | 
distilled water ; after twelve hours I caused: it to beil a econsi— 
derable time in a suitable vessel without luting the JORCtOres 5 
when taken from the fire and sufficiently cooled, F strained and 
filtered it; and the result was a yellowish tincture, like that 
produced by the infusion in aleohel. The liquor being evapo- 
rated, yielded a drachm and a half of extract of solid consisten-. 
cy, without any adhesive property, shining, and of a dark grey 
colour; somewhat resembling the resin. of jalap, which in afew: 
days became much harder, lost some of its lustre, and.remained:. 
friable and not.so dark coloured.. 
_4. From another half ounce of: the powders: I obtained; after: — 
repeated cold. infu: a pale gold- red: tincture, whiel» 
when evaporated yielded three. drachms of. extract, less shining. 
when dry than before, and. laminated,. but: sqjacily friable after~ 
some days, and of a rather ashy grey. 
5, Having burnt half an-ounce ef bark,. it was with difficulty 
reduced to ashes of a blackish colour, until they were consumed, 
to half a. scruple, when they: became: somewhat white. Ehey 
2M. 
x, 
