f X76 ) 
I'ObT, f . The Fern was of a middle ebnftitution between green 
znd dry when burnt. 
2. it w^as imployed to dry Malt burnt in a Kiln with a clofe 
fmotheringheac. 
3* Therefore the Allies yielded a fer greater proportion of Salt, 
than when the Herb is very dry, and incinerated by a free open fire. 
4. F*rom the fame caufes the Salt was not perfeftly Alcali2ate,but 
plainly Tartareous,andaboUnded with Oyl and Acid particlesjand 
therefore might properly enough be called an Eflential Salt : And 
upoa fufion wirh a ftrong fire was much changed^from a dark brown 
becoming, white, and was by theaftion of the fire mudh leflen'd in 
bulk, the confequence of the avolation of Oyl, Acidities, and per- 
haps other SubftanceSjduring the operation of to ftrong afire. 
5. That pare of the impure 5alc,whiGh,as I before intimated, was 
fet CO deliquate,did nor,as is ufual,become liquid,but a perfefi gel- 
ly , w hich coiild not by any method be afterwards reduced unto its 
faline form : Which recals unto my mind what is delivet'd by KsT'^ 
cherof his own perfonal experience in the Refufcitation of Plants^ 
who affirms, that at fome certain time of the operation the prepared 
Vegetable Subftances appear in fuch a form. 
The other Experiment concerning foUtil Salts fucceedcd afcer 
this manner; , '>!(.- •. r-''' \ 
Having occafion for VolkfitttV'inbus "Spirits for Toine ordinary 
ufes, [ mixc equal parts of'Sal Armoniac and Por-a(hes, which lat- 
ter had a very ftrong fulphiTreou^ fmell, yetdidfeem to abound 
with Salt^ .and tliat confiderably Alcalized* The mixture 
being put into a tall Glafs-bcxiyi immediately upon its feeling 
the heat, plenty of a VoIatil S^iV fubliniedj ffonrwhich I expeded 
110 unuruarappearance,. halving oft operation wich^ 
out obfer^ingany circumftahce wllicH deferv*d peculiar attention'. 
Being called from my Laboratory by fame Com(i)any or Employ*- 
ment juft as the Salt began to apRea|-^ 4t mv return T was amazed 
to fee iathe Glafs-head, which was,^ as' the Cu^^^^^ 
or capacious, a Foreft jji perfpefilve, fo admitabj)^ dcHntated', 
as noc to be excelled, if imitated, b/ the pencii of thegreateft Ma- 
kers in painting. Theywereall, not only to my apprchenfian-, 
but alfo in the Opinion of feveral Speftators,i:cady to atteft ir, Sha'- 
dows, Pvudiments, Adumbrations,, or Repi^efenrations of' Firr}^ 
J?/;^^/^. and another (on of Tree^whlch'I. cannot eaGly defcribe, 
nor have I ever'fi?en it growing wild or in gardiens , or inany Hei^- 
bale}faftly reprefented. All thefe Images^ although very nume- 
rous 
