%€6

General Biftory o/DRUGGS.

Vol. ir.

tallick as Cohalt, or not metallick as LapisCalamtnaris: The Artificial is a Kind of<<«, which is feparated from the Metalsin the Founders Works, when they makeLeton, Pompholyx, or Tntty.

4. Of the Hematitis, or Blood Stone.

Pomet. T -1 H E Lapis Hematitis, or BloodA Stone, is a Mineral of a red-difli Colour, bard, ponderous, with longpointed Needles, very dangerous to fuch asare prick'd by them.

This Stone is brought ns from many Pla-ces, there not being any Iron Mines whereinthey are not found.

Choofe as near as you can thofe Sconesthat are of the higheft Colour, with fineStri.e or Needles, as much like Cinnabaras may be.

This Mineral has little Ufe in Medicine.Mr. Cbaras obferves in his Pharmacopceachymica, Page 823, that if you drive it overthe Helm, in a Retort, with Sal Armoniack,you may draw Flowers of the Colour andSmell of Saffron, which is what they callthe Fiores Aromatici Piiilofopborum .- Andmoreover you may make with it a chalibeatacid Spirit, and with Spirit of Wine a Tin-cture and Flowers j both which have greatVirtues, according to the afore-mention'dAuthor, to whom I refer you.

'Tis faid this Stone has a Sovereign Vir-tue to flop Blood, from whence it derivesits Name of Lapis H.cmatitis, or the BloodStone.

This Stone being powder'd, as is faid ofthe Load-Stone, enters the Compofition offome galenick Medicines: Alfo thofe thatwork in Metals, or in queft of the Philofo-phers Stone, make ufe of this.

Goldfmiths, and thofe that gild in Gold,ufe it too, to polifh their Work, whether itbe in Silver, Copper, Iron, Wood, or theltke.

There is alfo another Sore of Blood Stones,call'd t{ed Pencil, us'd by fuch as defign anddraw Sketches, and like to thofe of Spain,with this Difference, that they don't appearfo fparkiing with Needles, but dull and un-polifh'd, like Earth.

Thefe Crayons are brought us from Eng-

land, and are of two different Sorts ; theone good, which is pretty tender, foft andeafie to faw or cut into Crayons ; but theother not worth any Thing, is hard andgravelly, and will not admit of cutting.

Hamatitis, Lapis Sanguineus, orthe Blood Stone, is a hard, folid, Lemerf.heavy Stone, participating of Iron,difpos'd like Needles, of a reddifh brownColour, but becoming red as Blood, accord-ing as ic is redue'd to Powder ; they take itfrom the Iron Mines. The beft and moftefteem'd is that of Spain, which is clear,heavy, hard and folid, in fine Shoots of areddilh brown Colour, with Streaks that areb'ackifh without, and refembling Cinnabarwithin ; it is very aftringent and drying,ftops Blood, and is given internally, as wellas externally, in fine Powder: The Dofefrom fifteen Grains to a Dram. There isanother Sort of Blood Stone brought fromEngland, call'd the Bi/lard Hematitis ; itdiffers from the former in that ic neither fhootsinto Needles, nor is fo hard : Chufe fuch asis of a brownifh Red, weighty, folid, andfmocth ; it is aftringent, and is call'd Hama-titis from cutta, Blood, becaufe being pow-der'd it is of the Colour of Blood, and ftopsBleeding.

f. Of Spanim Emery.

~CMsry of Spain is a Marcafite or p^ ftony Mineral, with fwall Veins ms *of Gold running through it, which is foundin the Mines of Peru, and elfewhere: 'Tisof much Account amongft thofe that feekthe Philofophers Stone, becaufe of thefegolden Veins that adorn it; and 'tis at thisDay fo valuable and fcarce, that thofe thathave any of it may fell it for its Weight inGold ; and therefore the King of Spain hasforbidden the Exportation of it out of hisKingdom, which is the Reafon 'tis fo veryfcarce to be found. This fame Emery is oflittle or no Ufe in Phyfick, tho' Mr Demeuvefays it is of a corrofive and cauftick Qua-lity.

There are, befides this, two other Sortsof Emery, one whereof is reddifh, and foundin Copper Mines, as well in Sweden as otherPlaces, and is what feme fell for E-

tnerj