Lea. IL. pi feveral Menfirnums. 
3. 9. Aqua fortis, and Oyl of Vitriol being poured feverally upon ano: 
ther fealed Earth, which was vended by the name of Terra Lemnias they 
both made a very confiderable Effervefeence herewith. Whence it appears, 
That there is no fmall difference in the nature, and therefore the opera 
tion of Bolss Armena and Terra Lemnia, As alfo, betwixt the fealed 
Earths themfelves, one making a great Ejervefcence, another none at 
all. Whereto thofe that ufe them, are to have regard. 
4. $. Next for Stones, And firft, Irifh slat, with Spirit of Harts- 
horn, maketh a finall, jet vifible Bullition: and it prefently ceafeth. So 
that it feems to be nothing elfe but a Vitriolick Bole. As is alfo argued 
from its tafte, which is plainly acid, and fomewhat rough. Whence 
alfo it iswith good reafon given upon any inward Bruifes. Becaufe 
by coagulating the Blood, it prohibits its too copious afllux into the 
affected part. Yet being but gently aftringent, and fò the Coagulati- 
onsit makes, not great 3 they are Jikewife well enough carried off from 
the fame part in the Circulation; by both which means an Inflammation 
may be either prevented, or the better over-ruled. 
5. $. Lapis Hematites maketh no Effervefcence at all either with Als 
kalies or Acids. 
6. 5. Powder of the green part ofa Magnet with Oyl of Vitriol max 
keth fome few bubbles, yet not vifible without a Glafs. But the powder of 
the black part of a Magnet, which is the faid ftone fully perfect, flirreth 
mot with any acid. Neither doth the calcined Magnet. Hence there is 
fome confiderable difference betwixt Iron and the Magnet. 
7. $. Lapis Lazuli, with Oil of Vitriol, and efpecially with Spirit of 
Nitre, maketh a confpicuons Bullition, Hence its Cathartick virtuelyeth 
in an Alkaly. For which reafon it is alfo appropriate, in like manner 
as Steel, to the cure of Hypochondriacal Affedions 3 originated from 
fome kind of fermenting Acid. y 
8. Ofteocolla, with Spirit of Nitre maketh yet a greater Effervefcence. 
How it comes to befo great a knitter of broken Bones, as it is repu- 
ted, is obfeure. It feemeth, that upon its'folution by a Nitrous Acid 
in the body 5 itis precipitated upon the broken part, and fo becomes a 
kind of Cement thereto. 9 
9. $. Lapis Tuthie, with spirit of Nitre, maketh an Effervefcence 
much alike. And with Oyl of Vitriolvery confiderably. But Lapis Cala- 
minaris with Oyl of Vitriol grows flark; as the powder of Alabafter doth 
with water. With Spirit of Nitreit maketh a little Bullition, and quickly. 
But with Aqua fortis, agreat ones beyond any of the Stones above named, 
Hence both Tutty and Calamy are Opbtbalmicks from their Alkaly. 
Which is'alfo confirmed, from the efficacy of fome Alkalies of the like 
ufe, Hence alfo Calamy feemeth to partake fomewhat of the nature of 
Silver : as by tryal made upon that alfo, will hereafter better ap- 
ear, 
10. §. Chalk and Oil of Sulphur or Vitriol make as firong an Efer- 
wefeonce as any of the reft; Whence it is fometimes well ufed againit a 
Cardialgia. 
11. §. Whiting makes as great an Efferveftence as Chalk, So thatit 
feems the faline parts are not wafhed “with the water, wherein 
the Chalk, for the making of Whiting, is diffolved. 
002 12, $. 
