( *84) 
worts and Rofemary-Flowers give a Salt of one and the 
fame Figure, as like wife do among themfelves Fine Bran- 
ches, Sorrel^ Black Pepper, the Rind of Pcmgranates, and 
the Roots of Black Hellebore. 
13. To make the Bodies of the Salts when they con- 
geal,reft diftind: one from another(fj as their Figures may ' 
be obftrved) and not be intangled and heaped together, 
'tis neceflary, he fays, that very great Diligence be u(ed 
in evaporating the Lye, tor if that be wholly evaporated, 
or if too great a part thereof, the Salts make a confufcd 
Cruft at the Bottom of the Veffel, if the Lyes are left 
too Weak, the Salts require a very long time to congeal 
in, 'tis Requifite therefore to uft fuch a Diligence, which 
is not to be gained without long Praftice. The Inflru- 
ments for meafuring the Weights of Liquids, may give a 
Rule, which if it be not General, will at leaft come very 
near it the Lyes being reduced to a convenient Thick- 
nefi, are put into little imall Glafles clofed with a Stopple, 
and kept in a dry ftiady Place, and you muft exped: by 
the Benefit of Time, that the Salts will congeal them- 
felves into Chriftalline Stones, either in the Bottom or on 
the Sides of the Veflel. 
14. Not all Herbs, nor Flowers, nor Fruits, nor 
Woods when they are burnt, render equally the fame 
Quantity oi Salt, but according to the Diverfity of their 
Species, the Qaantity of Salt which is drawn from their 
Afhes, is found different. The Seafons wherein the 
^hnts are gathered make a great Diverfity, as alfo does 
the Country, whether Montanous or Champaine , or 
Sca-Coaft or Marfliy or Moift. 
15. AH Matters burnt give not the fame Quantity of 
Allies,, bur there is great Diverfity which you may fee 
by the following Proofs,!he great Part in the Year 1660. 
inthe Time of the Mofl; Serene Great Duke Ferdmand If. 
of Glorious Memory. 
\ founds. 
