434 Treatise on 
the fungous Productions which grow to Oaks or 
other Trees, are Species of Agarick, differing in 
Colour, Form, and Virtues, from the genuine A- 
garick of the Shops. 
Diofccrides fays, that Agarick grows in Agaria, a 
Province of Sarmatia \ whence is derived its Name. 
But at this Time it is gathered upon Larch-trees in 
Dauphiny , the Alps , and other Mountains. 
In a chymical Analy/ts , three pounds eleven oun- 
ces of the whiteft Agarick yielded fixteen Ounces, 
Four Drachms and thirty-four Grains of Liquor, at 
firft merely aqueous and tranfparent, then reddifh 
and acid, afterwards brown, empyreumatick, and 
burning the Tongue like Pepper ; two Ounces, fix 
Drachms and thirty-fix Grains of reddifh urinous 
Liquor full of a volatile Salt, and a very little acid ; 
fixteen Ounces, fix Drachms, twenty-five Grains of 
fluid Oil. The black, denfe, hard Refidmm in the 
Retort, weighed twelve Ounces : Which being cal- 
cined in a Crucible for 19 Hours, left one Ounce, 
three Drachms of reddifh brown Afhes •, from 
which were drawn, by Lixiviation, two Drachms 
of fixt Salt merely alkaline. The Lofs of Parts in 
Diftillation was ten Ounces, fix Drachms and fixty 
Grains * and in Calcination ten Ounces, five Drachms 
went off in Smoke and Flame. 
From this Analyfis it is evident, that Agarick 
confifts of a tartarous and ammoniacal Salt, joined 
with a large Quantity of Oil, and a very fmall Por- 
tion of Earth : Which Principles are fo combined, 
as to conftitute a Salino-refinous Compound *, foraf- 
much as two Ounces of Agarick afforded, by the 
Means of Spirit of Wine, fix Drachms and a half 
of a refinous Extract, of an unpleafant naufeous 
Tafte. Though Water diffolves and extra&s very 
little from Agarick, but converts it into a (limy or 
mucilaginous Matter : Hence it appears that Infu- 
fions 
3 
