

262 Effential and Marine Lea. IV. 
folution of Bodies. This I have formerly mentioned for the Imitation 
Difcourfe~ of Nature, in producing a Marine or Muriatick Salt out of the Lixiujal 
of Afixture Salt ofa Plant. But fome Learned Perfons then prefent, feeming to 
Ch, §.Inft. doubt of the Experiments I thought it requifite to profecute the fame 
2. a little furthers that fo, if poffible, it might become clear and unquefti- 
onable. And becaufe that Method wasimperfect, and required half a 
year, ora longer time: I bethought my felfof an other way 3 which 
proved far better, and more expedite. And which, withall, afforded 
me, not only atrue Marize salt, out of the Lixivial salt of a Plant ; 
but alfo another kind of salt, different from them both: which may 
not be improperly called, an Ejfential salt or Nitre of Plants. The 
Hiftory or manner of the produétion of them both, is as follows, E 
3. §. December 15. 1675, I took about half a pound ofa ftrong 
Solution of the Lixivial Salt of Firne: and pouring it into an Earthen 
Pan, well glazed, broad and fhallow, expofed it therein to the open 
Tab. 83. Aer, in a Chamber Window, to evaporate of it felf. 
4. §. This Solution or Lee, although it was very clear before, and 
having ftood corked up in a bottle many days, had no fedement : yet 
{tanding now in the open Aer,within the fpace of 4 or 5 days, it began 
to let falla very white Sedement, like fine Chalk, which encreafed daily 
for 8 or todays; amounting at Jaft to about halfa Drachm of white, 
light and meer Earth, altogether infipid, and when it was well wathed, 
ftirring not upon the Affifion of Acids, 
5. §. Within the fpace of a day or two after this white Sedement 
began to fall tothe bottom; there was alo gatherd on the top, a 
kind of foft Seu or Cremor, wherewith the Solution was covered all 
over t 
6. §. Within 8 or 9 days after the firft expofing of the Liquor, or 
2 or 3 days after the gathering of the Cremors that Salt, whichT take 
leave to call, an Effetiat salt of Plants, began to appears fhooting 
into feveral little Crysfals, Thefe Cryftals, as they orew bigger, began 
to fink, and at laft fell down to the bottom of the Paz, 
7. §. Upon their firft generation or fhooting, the faid Cremor pre- 
fently breaks, leaving a bare {pace round about each Cryftal ; and upon 
Lab. 83. the bounds of every {pace isindented5 the {pace growing bigger and 
bigger together with the Cryftal in the Centre. And fo, by that time 
the Cryflals are grown to a confiderable number and bignefs, the Cre- 
mor vanithes away, the feveral Circles or bare places breaking at laft 
one into another all over the Surface of the Lee. After which, it ne- 
ver comes again, 
8. §. From whence it feemeth, That the feveral Circles or bare 
Spaces about the Cryftals, are made for the more free admiffion of the 
Aer, requifite to their Geveration, For as there is no Cryftal begins to 
be formed before there is a breach made in the Cremor : {0 that breach 
is enlarged together with the Cryftal. So that as the falling of the 
Sedement and the gathering of the Cremor,fheweth that the Aer,asa Men- 
ef Siruum {eparates fome part from the Lee: fothe breaking of the Cremor 
afterwards, that as a Vehicle, it brings fomething to it: both in order 
to the Generation of the eryfals. Nature taking a Method for the Gene~ 
ration Of fimpler Bodies, as well as of thofe which are Compounded and 
Organical, 















































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