Boyle WorkdiariesWorkdiary 14Page 2 of 4
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The Liquor as it will imbibe then they set this Straw on fire takeing great care that it flame not; which they prevent by a constant smothereinge it with more of the same moist Straw this ashes they put in a furnace wherein the fire being placed on both sides in certaine Troughs the flame onely touchs the matter upon which when it has placed about 6 or 8 houres the worke is done

5, They make <Medea>replacing 'Stipony' thus they take to six pound of Maligo Raisons & six ounces of Coriander seeds foure gallons of faire water. This in the Summer time the set in an open vessell in the sunne till it begin to have a kind of skin at the top & to tast but a litle & a litle sowrish then the Bottle it up & if they will have <stipony>replacing 'Medea' they put a quart Botle about a Spoonefull of the Juice of Sorrell & if they would have it Nectarell'N' altered from 's' insted of the juice of Sorrell they put a Spoonefull (more or lesse) of strong infusion of Cloves Cinnamon & a litle Nutmeg made in faire water in a vessell kept a competent time in a moderate heat

[Integral marginalia:]
Jan: 25

6 Take of Tin 12 parts of good Regulus Martis (made with 3 parts of Antimony to one of Iron) one part, beat the Regulus very small & when the Tin is melted strow on the powder by degrees till that & the Mettall be very well incorporated which when you perceive remove the Mars from the fire & poure it out

7 Take Italian Fritters & put 10 the deleted in a litle Manganese poure them out into a masse which being polished will looke like black Marble & will cut glasse

8 Take Cristall & calcine it per se (onely heateing it red hot & quenching it in faire water) till you can bring it to an impalpable powder, then with Sal Alcali & a litle Rubigo melt it in a strong Crucible with a graduated fire which must at lenght to keepe the matter in fusion till the desired Colour appeare & the masse be freed from Bullæ then immediatly take it of the fire