Alchemiae Gebri Arabis philosophi solertissimi, libri, cum reliquis, ut versa pagella indicabit

.

In the fourth part, on artificial principles, these things are contained.
XXXVIII. Division of what is to be said in this part, with an insinuation of the perfection to be taught in the second book. 56
XXXIX. On sublimation the process of vaporizing a solid, why it was invented. 58
XL. What sublimation is, and of the three degrees of fire to be observed in it. 59
XLI. On the dregs of metallic bodies to be added to spirits in sublimation, and their quantity. 61
XLII. On moderating the fire in sublimation. 63
XLIII. On errors concerning the quantity of dregs and the arrangement of the furnace to be avoided when subliming sulphur and arsenic. Also, on constructing a furnace and choosing wood. 64
XLIIII. From what material and what shape an aludel subliming pot should be made. 67
XLV. On the sublimation of mercury or quicksilver. 70
XLVI. On the sublimation of marcasite iron pyrite. 71
XLVII. On the vessel in which marcasite can be rightly sublimed. 72
XLVIII. On the sublimation of magnesia and tutty, also of imperfect bodies, and on the addition of matter that lifts them. 75
XLIX. On descent and the manner of purifying

by means of pellets. 76
L. On distillation and its causes, and of its three kinds, namely by alembic distilling apparatus, by descensorium, and by filter. 78
LI. On calcination reducing to powder by heat of both bodies and spirits, with their causes and modes. 82
LII. On solution. 88
LIII. On coagulation the process of thickening or solidifying and its causes, and on diverse modes of coagulating mercury and dissolved medicines. 90
LIIII. On fixation rendering a substance non-volatile and its causes, and on diverse modes of fixing bodies and spirits. 95
LV. On ceration the process of making a substance waxy/fusible. 99

LVI. Preface dividing the second book into three parts. 101
In the first part, on the knowledge of things from which the possibility and mode of perfection can be grasped, these things are contained.
LVII. That the knowledge of the perfection of this art depends on the knowledge of the nature of spirits and bodies, and that he intends to treat both copiously. ibid
LVIII. On the nature of sulphur and arsenic. 103