234 ESSAYS anp OBSERVATIONS 
of hartfhorn, it turns muddy; with fpi- 
rit of fea falt, there is no change, the li- 
quor remaining clear, only a few bubbles, 
It coagulates foap when boiled with it, in 
the fame manner that fea faltdoes. This 
falt diffolved again in water, filtrated and 
infpiffated until it begins to cryftallize, 
gathers, when fet in a cool place, into a 
falt of a cubical form, and, when thrown 
into the fire, makes a noife like fea falt 
that is decrepitated. The liquor being 
further infpiffated and fet to cryftallize a 
fecond time, yielded a nitrous falt; the re- 
maining liquor was a pure lixivious alka- 
 Jine fale, that made a {trong effervefcence 
with acids. From all which it appears, 
that this falt is principally compofed of a 
falt like that of common fea falt, with a - 
fmall proportion of the alkaline kind, 
WuarT remained after the falt was ex- 
tracted, out of the afhes, was only a flimy 
earth and fome fand. 
To thefe analyfes, I fhall add two others, 
Dr Smidberg a phyfician at the Hague, 
having diftilled fome peat in a retort, ob- 
tained from it a fpirit, an oil, a volatile 
falt, 
Ue eee eae es 
