PREFACE.


On the Arts of the Alchemists, 1 book.	Pits. John Pits (1560–1616) was an English Catholic scholar and biographer who compiled lists of English writers.
On Secrets, 1 book.	Leland. Bale. Pits. John Leland and John Bale were, like Pits, major 16th-century bibliographers who preserved the titles of medieval manuscripts.
On Metallic Matters, 1 book.	Leland. Bale. Pits.
On the Engravings of Stones, 1 book.	Bale. Pits.
On the Philosophers' Stone, 1 book.	To your petition. original: "Vestræ petitioni." In the medieval period, books were often identified by their "incipit," or opening words, because titles could vary between copies. Bale. Pits.


Against the Necromancers, 1 book.	Bale. Pits. Necromancy: A form of magic involving communication with the dead; Bacon often sought to distinguish "natural magic" (science) from forbidden "black" magic.
On Necromantic Images, 1 book.	Pits.
On Geomancy, 1 book.	Pits. Geomancy: A method of divination that interprets markings on the ground or the patterns formed by tossed handfuls of soil or rocks.
On Incantations, 1 book.	Pits.
Practices of Magic, 1 book.	Pits.


On Logic, 1 book.	The introduction is brief. original: "Introductio est brevis." Leland. Bale. Pits.
On Metaphysics, 1 book.	Bale. Pits.
On the Intellect and the Intelligible, 2 books.	Bale. Pits.
On the Passions of the Soul, 1 book.	Bale. Pits. In this context, "passions" refers to emotions and sensory experiences rather than suffering.
On Universals, 1 book.	Bale. Pits.
On Aristotle's Posterior Analytics, 2 books.	It has been spoken concerning the syllogism. original: "Dictum est de syllogismo." Bale. Pits.
On Avicenna's "On the Soul," 1 book.	Leland. Bale. Pits. Avicenna (Ibn Sina) was a Persian polymath whose medical and philosophical works were foundational to medieval European learning.
On Moral Philosophy, 1 book.	I have shown in the preceding [parts]. original: "Manifestavi in præcedentibus." Bale. Pits.


On the Errors of Physicians, 1 book.	The common crowd of physicians. original: "Vulgus medicorum." Bale. Pits.
On the Delay of Old Age, 1 book.	Lord of the world. original: "Domine mundi." This likely addresses a patron, possibly the Pope. Leland. Bale. Pits.
On the Universal Regimen of the Elderly, 1 book.	The sum of the regimen. original: "Summa regiminis." A "regimen" refers to a prescribed course of diet and lifestyle for health. Bale. Pits.