378 On ALLANITE, a new 
ditional quantity of fuccinate of ammonia was adde. And we 
precipitate fell ; but inftead of the dark reddifh-brown colour, 
which characterizes fuccinate of iron, it had a beautiful fleth- 
red colour, which it retained after being dried in the open air. 
‘When heated to rednefs in a covered crucible, it became black, 
and had fome refemblance to gunpowder. It weighed 7.2 
grains. 
4. Tuts fubftance attracted my peculiar attention, in confe- 
quence of its appearance. I found it to poflefs the following 
characters : 
a. Ir was taftelefs, and not in the leaft attracted by the mag- 
net, except a few atoms, which were eafily feparated from the 
ret. | 
b. Ir was infoluble in water, and not fenfibly acted on when 
boiled in fulphuric, nitric, muriatic, oy nitro-muriatic acid. 
c. Brrore the blow-pipe it melted with borax and microcof- 
mic falt, and formed with both a colourlefs bead. With car- 
bonate of foda it formed a dark-red opake bead. 
d. WHEN heated to rednefs with potafh, and digefted in wa- 
ter, fnuff-coloured flocks remained undiffolved, which gradual- 
ly fubfided to the bottom. The liquid being feparated, and exa- 
mined, was found to contain nothing but potafh. When mu- 
riatic acid was poured upon the fnuff-coloured flocks, a flight 
effervefcence took place, and when heat was applied, the whole 
diflolved. The folution was tranfparent, and of a yellow co- 
lour, with a flight tint of green. When evaporated to drynefs, 
to get rid of the excefs of acid, a beautiful yellow matter gra- 
dually feparated. Water boiled upon this matter diffolved the 
whole. The tafte of the folution was aftringent, with a flight 
metallic flavour, by no means unpleafant, and no fweetnefs was 
perceptible. 
rae N 
