a a a a 
Led. I with feveral Menstruums. 241 
greater 5 yet abideth nothing near fo long as that of Pyrethrum; which, 
asis faid, maketh alfo a more fenfible Bullition with Acids. 
15. §. Kermes-berries, commonly, but ignorantly, fo called, with the 
faid Liquor, buff up to an equal height, but in a fomewhat longer time. 
Hence they are gently aftringent 5 jcil. as their Alkaly binds in with 
fome preternatural Acid in the {tomach. 
16. §. Hawthorn-ftones, with Aqua fortis, huff up equally with the 
former Body but the Bullition is not fo vifible. The like is alfo obferva- 
ble of Medlar-flones. Hence, as they contain a middle quantity of an 
Alkaly, they are not infignificantly ufed againft the Stove. 
17. §. Seeds of Staphifagria, with Aqua fortis, make a Bullition fill 
more vifible. But it quickly ends. This confirms what was faid before, 
fe. That the caufe of a durable Heat is an Alkaline sulphur; thefe 
Seeds producing a durable Heat, as doth the Root of Pyrethrum. 
18. §. The Seeds alfo of red Rofes, Borage, and Comfrey do all with 
Aqua fortis make a confiderable Bullition and huff; and that very quickly. 
So that amoneft all Shells and Stones, thofe generally make the greateft 
Beliiee which are the hardeft and the brittleft, and fo the fulleft of 
Salt. 
19. §. Euphorbiume makes a Bullition yet more confiderable, with much 
froth, and very quickly. From which Experiment, compared with two 
of the former, it appears, That Euphorbiwn is not an Acid, but an Al 
haline Gum. As alfo, that the caufé of its fo very durable Heat, is an 
alkaline Sulphur, as of Pyrethrum and Staphifagria hath been faid. It 
{eems alfo hence evident, that the power of all great Sternatatories 
lyeth not in their Acid, but their Alkales. 
20. §. The Arenule or little ftonesin Pears, clufter’ d round about the 
Coar, with Aqua fortis, prefently buff up, and make a great Bullition and 
Effervefcence,much greater than doany of the Bodies above-named. Whence, 
although, {0 far as know, they have never yet been ufed in Medicine 5 
yet it is probable, that they are a more potent and effectual Nephritick , 
than any of the Bodies aforfaid, {ome of which are ufually prefcribed. 
It is hence alfo manifeft, That, according to what I have elfewere faid, 
for the fweetning of the Fruit and Seed, the Tartareous and Alkaline Anat. of 
parts of the Szp, are precipitated into their Stones, ftony parts, and Plants, B. 
Shells. 1. Ch. 6, 
21. §. The laft Inflance fhall be in the foells of the Seeds of Milinm 
Solis ; which not only with Aqua fortis, but fome other Acids, make a 
greater and.quicker Bullition and Effervefcence, than any other vegetable 
Body, upon which I have yet meade tryal, in its natural eftate. Hence, as 
well as from divers of the laft fore-going Inftances, we have a clear 
confirmation of what I have, towards the begifining of this Difcourfe, 
afferted 5 fc. That there is fome kind of Alkaline Salt in Plants, even in 
their watural eftate. Asalfo, that they are as fignificantly ufed againft 
the Stone, quatenws alkalixate, as Millipedes, Egg-fhells, or any other 
teftaceows Bodies ofthe fame ftrength. Tothefel thall fubjoyn one or 
two Examples of Vegetable Bodies which are more or le( altered from 
their vatural eftate. 
22. §. Neither Cryftals of Tartar, nor Tartar it felf (although they have 
fome fiore of alkaline mixed with their acid parts) make any Hfferveftence 
with Acids, but only with Alkalites, as Spirit of Harts-Horn, Gc. Hence 
the calculous fediment or Arenuls in Drine,may not fo properly be called 
oO 

fo) the 



























































