Lea. IV. Salts of Plants. 
21. $. The Cryfals of Marine Salt of Scrwoygrafs are fomewhat 
like to thofe of Roferzary now defcribed. 
22. $. As for the Lixivial Salts of Afb and Tartar , though in a 
Month or Five Weeks Space, they yield fome Cryftals of very cleat 
Salt: yet of Marine Salt neither of them yieldeth the leaft particle, 
So that of thefe Six Lixivial salts, fo. of Rofemary, Scurvygrafs, Black, 
Thorn, Wormwood, Afh and Tartar, all, but that of Tartar, yielded an 
Effential Salt. And all, but thofe of A and Tartar, yielded a Mas 
rine, fach as is above deferibed. All which salts both Effential and 
Marine, together with their Models, made of white Alabaftre, 1 have 
here ready to be een. 
23. $. Of thofe that yield thefe salts, or either of them, it is 
furtherto be noted, That there is a confiderable difference in the 
Proportion or Quantities which they yield, The Rofémary yields ftore 
both of Effential and Marine, but more Effential. Wormwood and scur= 
vygrafi more Marine, Black Thorn lef of Either The Ah no 
Marine, and the Tartar neither the Efential nor Marine, as hath 
been faid. 
24. $. From what hath been faid, I deduce only at prefent thefe 
Three Corallaie, Firft, That a Lixivial Salt, is not only a compoun- 
ded Body fè. ofSalt, Sulphur, Aer and Earth; but even a Compounded 
Salt, containing both a Vegetable Nitre, and a true Sea Salt, 
25. $. Secondly, That the Expofing of Bodies, in the manner 
above fhewed, may juftly be accounted one Part of Chymiftry hitherto 
eficient, and much farther to be improved for the Difcovery of the Na- 
ture of Bodies, For as Nature chiefly compoundeth Bodies by Digefling 
them, and fo either fhutting out or keeping in the 4er: So fhe Dif 
Jolveth them by Expofing, and fo neither fhutting in the Aer, nor keep- 
ing it out, but leaving it free to come and go; and thereby to bring, 
and carry off whatfoever is necefíary for the Separation or Solution of 
Bodies, For the Sea it felf (to confine the fimilitude to our prefent cafe) 
is but as a Great Pan, wherein all kinds of bodies being long expofed, 
are throughly refolved, ultimately yielding from the reft of their vi- 
fible Principles, that which we call Sea Salt. 
26. $. Laflly, if by Expofing and Difolving we can make oneSatl; 
then by Compounding and Digefting we may make another, yea any 
other Salt ; either a Fixed of a Volatile,or a Volatile of a Fixed. That 
isto fay,a Volatile Salt may be fo feparated from other Bodies, as to be- 
come Fixed; ora Fixed Salt may be fo mixed with other Bodies as to 
become Volatile, For that any Salt fhould of it {elf become Fixed or 
Volatile isa Fixion not grounded upon Experiment. 
27. $. As for the Virtue of the Effential salts above deferibed, I 
believe they will be found upon tryal, not contemptible in fome 
Cafes. For which amongft other reafons, I have been the more pundual 
Rra in 
