in Buncome County, North-Carolina. — 123 
with propriety, that anol quart of water contains about ten 
grains of fixed produe 
2. The whole Sean (28 grains) was pasa into a small glass 
bottle, and alcohol poured on, to the depth of aninch. This 
mixture was frequently shaken, and stood for twenty hours. 
3. It was then carefully filtered, washed with more al- 
cohol, and the filter dried by a regular and moderate heat. 
The, powder separated from the filter, was weighed, 
amounted to twenty-three grains, and as the filter which had 
been weighed both before a use, appeared to — 
one grain, the quantity taken up by the alcohol, may be 
timated at four grains. 
- A small portion of folic polation was diluted 
with water, and tested with: ic acid and with a solu- 
ion of copper ; but as no effect resulted, it may be conelu- 
ded that neither barytes nor ammonia were iti AS 
4, The remainder of the alcoholic solution was evapora- 
ted, but an accidental fracture of the evaporating vessel pre- 
vented the ascertaining of the nature of the residuum. 
6. The portion (23 grains) which the alcohol did not take 
up, was then mixed with eight times its. weight of distilled 
water and stood for forty eight hours. 
7. This mixture was then filtered, dried and a 
Tesidue was seventeen grains, so that six grains must - 
bees been dissolved by the water. 
8. This watery solution was then evaporated, and the 
residue being re-dissolved in water, was tested as follows: 
Nitrate of barytes gave a white cloud, so did carbonate of 
soda 
- Oxalate of ammo oduced a thick white cloud. 
Nitrate of silver had no It may be inferred then, 
that these six grains we! ipally sulphate of Magnesia, 
and that a small portion ‘of sulphate of lime w as also pres-' 
ent. 
9. Ten grains of the seventeen, that were not dissolved 
in Mt 6) were: mixed with ten ounces of cold, dis- 
tilled water, and boiled for some hours. On and 
drying, the ‘uideecbend residue was between one two 
grains, so that nearly the whole of these ten grains | was prob- 
= ay ges of lime. 
portion of the preceding clear solution was tested 
as rei Oxalic acid produced a white cloud slowly ; but 
oxalate of ammonia, an immediate and thick white cloud. 
