CHAP. LXXXIIII.
Of the manner of extracting Oyles out of hard gums.
YOur hard gums, such as is frankincense, benjouin, masticke, and waxe, seeing they are of a more earthie substance, haue a faster and 〈◊〉〈◊〉 con∣sistence, and are resolued more hardly than the liquid ones, and so aske not onely more labour to haue their oyles drawne from them, but stand in need also to haue some sort of oyle, and a reasonable fire to ••ollifie and soften them, to the end that afterward they may the more freely yeeld their owne Oyle. It is true, that euen of these there are some of them more tedious and s••i••••yer resisting to be dissolued, as Frankincense, and Benjouin: and othersome more easie to be molten, as Wax: and there are others that are indifferent betwixt both, as masticke. So as that all these gums, according as they are more or lesse hard to be resolued, must be more or lesse mollified and melted before hand, by the meanes a∣forenamed in the distilling of liquid gums: the vvater only excepted, which must ne∣uer be put into the retort with any thing to be distilled. It is also to be considered and vveighed, how that hard gums doe verie hardly indure and abide any vvater, vvhiles (inclosed vvithin the retort) they sustaine the violence of the fire, but in steed of fire, one may put thereto of oyle of Turpentine, to the quantitie of three oun∣ces, as well because this oyle is most pure and distilled with a reasonable heat (as we haue said before) as because it hath a property drawing neere vnto the nature of these gums, whereupon it seemeth the more fit to be vsed in the distilling of these gums, as seruing notably to correct their hardnesse: againe, this vvay more oyle will be drawne, than by vsing of vvashed sand and grauell cast vpon the matter: and accor∣ding as vve see commonly practised of Oyles of all sorts of gums. And in case you haue not oyle of Turpentine in readinesse, you may vse some other sort of oyle; pro∣uided, as much as possibly may be, that it incline not notably either vnto any colour of smell: notwithstanding by this meanes you shall not doe more good than by the former. For there is some kind of gum so troublesome to be resolued, as frankincense, as that you must be faine to draw the oyle thereof after the same manner that you v∣sed in the extracting of oyles from the drosse and residence of Turpentine, that is to say, by casting into the retort amongst it small morsells or lumps of lead, and vvith raising of the necke of the retort a little higher than is vsuall in the distilling of Tur∣pentine and oylie vvoods. By this meanes vvithout all doubt you shall see some oun∣ces of oyle swimming on the top of the water within the receiuer, after that the mat∣ter hath growne hot: vvhich (for as much as they would be tainted with some ill smell and vnpleasant taste, because of such qualitie as they haue gotten through the vehementnesse of the fire, then inclosed with the retort) must be corrected by the changing of the water in the receiuer, that so you may keepe them for the vses which shall hereafter be declared.
These things aforesaid well vnderstood, when you desire greater quantitie of oile, and that more cleare and excellent; you shall take two pound of the said ma••ter and gums, vvhereof your rese••ued oyles were made: you shall put them in a cleane re∣tort, vvhich you shall set ouer the fire, hauing the necke hanging downe somewhat more low, and in a short time (and that vvithout any great force of fire) there vvill be wrought a certaine kind of butter, vvhich will run out in great plenti••, being as it