Natural Magick. c BooJ^6.

I have seen precious stones thus made, and in great esteem with great persons, be-ing oi two colours: on one side a Saphire, and on the other a Diamond, and lo ofd'vers colours. Which may be done after this manner : For example, we would havea Saphire should be white on one side, and blew on the other ; or should be whiteon one side, and red on the other: thus it may be done. Plailser up that fide whichyou would have red or blew, with chalk, and let it be dryed; then commit it to thefire, those ways we spoke of before, and the naked side will lose the colour and turnw ite, that it will seem a miracle of Nature, to those that know not by how flight anarr it may be done.

How to (Iain glass os divers colours.

I will not pass by a thing worth the relation, which happened by chance, while wewere making these experiments. The flower of Tinne taketh away the perspicuity ofCrystal glass,and maketh it of divers colours: for being sprinkled upon Crystal glassesthat are polished with a wheele, and set to the fire, it doth variously colour them,and maketh them cloudy; so that one part will look like a stone, and another likean Opalc of divers colours. But you must often take it out from the fire, and orderit rightly, till it be accordingto your desire. I have before told you how to makeflour of Tinne for the purpose. I will adde somewhat more, indeed no seeker, norvery necessary, but that nothing may be omitted by us in this work, viz,.

How to make a Jacinth

beautiful enough, and not much unlike a true one. Put lead into a hard earthen pot,and set it on the sire in a glass-makef s furnace, there let it remain for some days, tillthe lead be vitrified, and it will be of the colour of a Jacinth.

To counterfeit an Emerald.

You may do this almost in the fame manner; and it will resemble the colour ofapleasant green corn. Dissolve silver with strong water, then casting into the watersome plates of Copper , as I told you, it will cleave to them. Gather it together,and dry it, and set it into a glass-makers furnace in an earthen pot, within a fewdays it will become an Emerald. To do the same with other metals, I will leave cothe trial of others , it is enough for me to have found out and discovered the way.

To counterfeit (farbunclcs.

This we do with Orpin,and use it in some ornaments , for they are brittle, and ofa most flagrant colour, have much of the scarlet blush , and cast forth red sparkles.Take four ounces of Orpin, and grindc it small: then put it into a glass vessel, whosebottom you must fortifie against the force os the fire with mortar made with straw,and stop the mouth of it gently. The fire being kindled, the smoke flieth up, andthe thinnest part of the material will rise t a the top: and you will seek stick to thesides of the glass,and the neck: it will grow bigger by degrees , and new parts stillflying up, will make it grow thicker; and like boyling water gather into bubbles,which at last will encreafe so big , that they will fall down: Some will stick in the neckos the glass, all of a most flagrant colour, but brittle and small. Break the glass, andtake off with a sharp point of a knife, those red congealed bubbles which stick to theglass, and use them. If you would make one great one of those little bubbles ; laya great many little ones upon a piece of glass, and melt them, and they will run intoone : a most pleasant sight to fee.

Chap. VIII.

Of making smalt or Ennamel.

A Fter Gems we will endevour to make Smalt or Ennamel. It is a work almostof the fame nature, and of the fame mixture and colours; this onely difference

is between them, that in Gems the glass is transparent, in this it is more dense and

solid.