Berk IV, fideo ay 
9. §. The Marine, is obtained no other way, that I know of, but 
from a Solution of the Alksline, upon its being expofed to the Aer. 
The procefS wherof, I thall particularly fet down in a following Di- 
Scourfe. Of thefe Salts, mixed in acertain proportion, together, and 
alfo Impregnated with fome of the other Acfive Principles of a Plant, 
and not without an Admixture of fome Parts from the Aer; I {uppofe, 
that which I call the ential, is produced: of which, I thall alfo give 
an account in the fame Difcourfé. 

to. §. ALL THE Four Salts above mentioned, feem in their Or- 
der, to have a fhare in the Formation of a Leaf, or other Part of a Plant: 
And firlt of all, the Marine. For all Gewerations are made in fome 
Fixid : But in every Fluid there is a perpetual Inieflive Motion of 
Parts. Sothat the firft Intention of Nature is, That fome of thofé 
Parts be difpofed to Reff. Now of all the Principles of a Plaut, there 
are none hereunto more difpofed, than their Salts; whofe Particles: 
being figu’rd with plain Sides, as often as they touch Side to Side, like 
two Marbles exquilitely polifhed, they will adhere together. And the 
Particles of Marine Salt, being Cubicks and fo,with refpett to their Fis 
gure,of greater Bulk than thofe ofany other Sal#; they will hereby, be 
moft and firft of all difpofed to Ref; and fo become; as it were, the 
Foundation of the following Superftrudure. 
11. THE Second {ntention of Nature is; That the Particles be 
brought to Reff, in a certain Pofition, agreeable to the Figure of the 
Parts which are tobe formed. And therefore in the next place, all 
thofe Parts of a Plant which are truly Lignous, by the Marine Salt, 
with the affiftance of the Alkaline, but efpecially of the Nitrous, are 
made to fhoot out in Length, or into an innumerable company of {mall Tab, #4: 
' Cylindrick Fibres : thefe Salts being,altogether, fturdy enough to refift “*” 3 
thofe Jvpul/és which might incline them to conform to arly other Figure. 
' 
12. § THE next Intention is, That thefe Fibres, at the fame time 
in which they are formed, may likewife receive fuch a Pofture as will 
beft anfwer the indented shape of the Leaf: Which Pofture, although 
in the Growth of the Leaf it is much Govern’d by the Aer-Veffels 5 yet 
in the Geweratiox hereof, feems to be firft determined by the foremen- 
tioned Salts, according to their feveral Azgles, whereby they are dif- 
ferently applicable one to another. 
13. §. Nowall the Sides ofthe Marine Salt, atid the Sides and the 
Ends of the Nitrous, properly fo called, ftand at Right Angles. And 
it is very probable, from the Figure of the Cryftalls in Spirit of Blood, 
and fome other Bodies, that the Particles of the Alkaline are Square at Tah, § 3. 
one End, and Poynted at the other. And thofe of the Acid, at both; 
And that, withal, they are Shorter and more Slender. 
14. g. It fhould therefore feem; That where the Alkaline Salt is 
any way predominant,and that the Particles thereof are placed End to 
End; there the Lignvous Fibres (as the larger ones in many Leaves) Typ, 52: 
declining their parallel Gremth, begin to fhoot out obliquely; or at Az- a 
gles one with another; and thofe Acute. 
ig 6: 
































































