Lea. II. with feveral Menstruums. 241 
greater 3 yet abideth nothing near fo long asthat 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 fomemwhat longer time, 
Hence they are gently affringent; fil. as their Alkaly binds in with 
fome preternatural Acid in the ftomach. 
16.. 6. Hawthorn-ftones, with Aqua fortis, huff up equally with the 
former Body 5 but the Bullition is not fo vilible. The like is alfo obferva. 
ble of Medlar-ftones. Hence, as they contain a middle quantity of an 
Alkaly, they are not infignificantly ufed againft the Stone. 
17..§. Seeds of staphifagria, with Aqua fortis, make a eet 
more vifible. But it quickly ends. This confirms what was faid before, 
Je. That the caufe of a durable Heat is an Alkaline sulphur; thefe 
Seeds producing a durable Heat, asdoth the Root of Pyrethrum. 
18, $. The Seeds alfo of red Rofes, Borage, and Comfrey do al with 
Aqua fortis make a confiderable Bullition and buff’; and that very quickly. 
So that amongft all Shells and Stones, thofe generally make the greateft 
Bullition, which are the hardeft and the brittleft, and fo the fulleftof - 
Salt. 
19. $.. Euphorbium makes a Bullition yet more confiderable, with much 
froth, and very quickly. From which Experiment, compared with two 
ofthe former, it appears, That Enphorbinm is not an Acid, but an Al- 
kaline Gum. As alfo, that the caufe of its fo very durable Heat, is an 
alkaline Sulphur, as of Pyrethrum and Staphifagria hath been faid. Tt 
feems alfo hence evident, that the power of all great Sternutatories 
lyeth not in their Acid, but their Alkalies. 
20. $. The Arenule or little flonesin Pears, clufter'd round about the 
Coar, with Aqua fortis, prefently buff up, and make a great Bullition and 
Effervefeence,much greater than do any of the Bodies above-named. Whence, 
although, fo far asI know, they have never yet been ufed in Medicine 5 
yet it is probable, that they are a more potent and effectual ad: 
than any of the Bodies aforfaid, fome of which are ufually prefcribed. 
Te 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 ofthe Sap, are precipitated into their Stones, ftony parts, and Plants, B, 
A Shells. 1. Ch. 6, 
dt ba fr 21. §. The laft Inftance fall be in the fhells of the Seeds of Milinm 
ei Solis; which not only with Aqua fortis, but fome other Acids, make a 
Ong! greater and quicker Bullition and Effervefcence, than any other vegetable 
fo Mi’ Body, upon which I have yet made iryal, in its natural eftate. Hence, as 
well as from divers of the laft fore-going Inftances, we have a clear 
g (nes | confirmation of what I have, towards the beginning of this Difcourfe, 
vib # afferted fe. That there is fome kind of Alkaline Salt in Plants, even in 
their natural effate. As alfo, that they are as fignificantly ufed againt 
the Stone, quatenus alkalizate, as Millipedes, Eeg-fhells, or any other 
tefkaceons Bodies of the fame ftrength. To thefe I (hall fabjoyn one or 
two Examples of Vegetable Bodies which are more or lef altered from 
their zatnral eflate. 
22. $. Neither Cryflals of Tartar, nor Tartar it felfCaltbongh they have 
Some fiore of alkaline mixed with their acid parts) make any Effervefeence 
# with Acids, but only with Alkalites,. as Spirit of Harts-Horn, &e. Hence 
des the caleulons fediment or Arennls in Vrine,may not fo properly be called 
E] Oo the 
