2^8 Mr. Macie’s Account of 
(B) This Tabafbeer was put back into the alkaline folution, 
which feemednot impaired by the foregoing procefs, and again 
boiled for a confiderable time. The liquor was then poured 
from it while hot, and the Tabafbeer edulcorated with fome 
cold diftilled water, which was afterwards mixed with this hot 
folution, in which it inftantly caufed a precipitation. On 
heating the mixture it became clear again ; but as. it cooled it 
changed wholly into a thin jelly ; but, in the courfe of a few 
days, it feparated into two portions, the jelly fettling in a denfer 
ftate to the bottom of the veflel, leaving a limpid liquor 
over it. 
(C) The Tabafheer remaining (B) was boiled in pure marine 
acid ; the acid was then poured off, and the Tabafheer edulco- 
rated with fome diftilled water, which was afterwards mixed 
with the acid. 
(D) The remaining Tabafheer collected, wafhed, and dried, 
weighed 24 gr. and feemed not to be altered. 
(E) The acid liquors (A and C) were mixed together, and 
faturated with foda, but afforded no precipitate. 
(F) The alkaline mixture (B) was poured upon a filter, the 
clear liquor came through, leaving the jelly on the paper. 
Some of this clear liquor, expofeftto the air. in a faucer, at 
the end of fome days depofited a fmall quantity of a gela- 
tinous matter ; after fome days more;> the whole fluid part 
exhaled, and the faucer became covered with regular cryftals 
of foda, which afforded no precipitate during their folution in 
vitriolic acid. What had appeared like a jelly while moift 
affumed, on drying, the form of a white powder. This pow- 
der was infcluble in vitriolic acid, and feemed ftill to be 
Tabafheer. 
Some 
