lj 6 Natural Magic k. Doo/^io.

which will meet and mix in the Head , and run down by the ^ofe, or Spcur, infothe Receiver : so set them by for use. This Congregation of Eflences, dothpenetrate and search all the remote passages of the Body, and is very useful inPhysick.

Chap. XIX.

How to get Oylout of Salts.

I Have declared many ways of extracting Oyl, now I will shew how to draw itout of Salts, that they may be more penetrative,and work more powerfully,whichcan be done no other way. They seem to have some kinde of fat in them, yet willnot burn; so that it cannot be called a perfect Oyl.

How to extraSl Oyl of Tartar.

Burn the Tartar, and reduce it into a Salt, as I shewed before : then lay itonaMar-ble in a moyst place, and in a few days it will turn to Oyl, and run down into a di h,which you must set underneath to receive it. Thus you may easily make it into Salt:Beat the Tartar into Powder, and mix an equal quantity of Salt*Pctcr with it: whenthey aremixt in Iron Mortar, set them in the fire, untilthey he quite burned: grindthe remaining Fæces, and dissolve them in a Lye, strain it, and let the Lye evaporateaway, and the Salt will settle to the bottom : then boyl some Eggs hard, takeour the yelks, and fill up their place with Salt, and iu a little time it wid dissolveinto Oyl.

Oyl of Sal Sod*.

Dissolve the Salt in Water, and strain ic through a cloth, then dry ir, lay it on a Mar-ble, and set it in a moyst place, and it will run down in an Oyl. So

ThefamoHS Oyl of Talk^

is extracted onely by the vehement heat of fire r yet 1 knew not at first what it wasuseful for. But I perceive it is much accounted of by women in their Focus. Beacit into fine Powder in an Iron-Morter, and put it into a very strong thick Pot, fastenthe cover on with wire, plaister it with Potters Clay,and set it in the Sun for threedays: then thrust it into a Potters Furnace where the flames are most violent. Afterthree or four days, take it out, break open the Pot • and if you finde it not suffici-ently calcined, make it up, and set it in again. When it is burned perfectly white,lay it on a Marble,and place it in a moyst room,or in a hole dug in the earth: and therelet it stand for a good while ,*<until it dissolve into Oyl ; then reserve it in a Glafs-bottle. So also is made

%ed Oyl of Sulphur.

Grinde live Sulphur into a small Powder, and mix it with an equal quantity of theformer Oyl of Tartar: boyl it three hours in a Glafs-bottle; and when it is diflolved,Brain it through a Linnen-clcth into another Glass, and set it over a Gentle fire, tillit thicken like clotted blood,and so dry. Then powder it, and lay it on a Marble ina moist Cellar ; there it will dissolve, and run down into the under-placed dish. Setthis Liquor, being first strained thorow a cloth in a Glafs-bottle over warm Ashes,until the moysture be consumed, and there will remain a red Oyl of Sulphur.

Oyl of tJMyrrh.

Bovl some Eggs hard, cut them in the middle, take out the yelks, and fill their placeswi'h Myrrh, powdered and seirced : lay them in an earthen Pan upon long cross-flicks, that the Eggs may not imbibe the Oyl again, and shut them in a moist Cellar fso the Oyl will drop down into the Pan.

CHAP