Certain works may be mentioned which are ascribed to Solomon or to Apollonius in the medieval manuscripts, and which do not seem to be concerned with the notory art. Experiments ascribed to Solomon will be mentioned in another place in connection with experimental literature. Treatises of alchemy and astrology also were attributed to him.[896] Under the name of Apollonius we find a work on the properties or occult virtue of things, and another, or possibly the same, on the principal causes of things.[897] One wonders if it may have any connection with the book on six principles of things ascribed to Hermes Trismegistus and which has been discussed in our chapter on _Hermetic Books in the Middle Ages_. A treatise on palmistry is ascribed to Solomon in a fourteenth century manuscript at Cambridge.[898] A “Philosophy of Solomon” in a manuscript of the late twelfth century in the British Museum consists of “notes perhaps from more than one source on the analogy between the patriarchs Abraham, Isaac, and Jacob, the three divisions of philosophy (_moralis_, _naturalis_, _inspectiva_), and the three books of Solomon.”[899] [Sidenote: _Liber sacratus_: preface.] The _Liber sacratus_, as William of Auvergne twice entitles it, or the _Liber sacer_ or _Liber juratus_, as it is also called in the manuscripts,[900] is associated with the name Honorius as well as Solomon, and is often spoken of as _The Sworn Book of Honorius_. The preface, as given in the Latin manuscripts of the fourteenth century--one of which once belonged to Ben Jonson--states that under the influence of evil spirits the pope and cardinals had passed a decree aiming at the complete extirpation of the magic art and condemning magicians to death. The grounds for this action were that magicians and necromancers were injuring everyone, transgressing the statutes of holy mother church, making invocations and sacrifices to demons, and dragging ignorant people down to damnation by their marvelous illusions. These charges the magicians hotly deny as inspired by the envy and cupidity of the devil who wished to keep a monopoly of such marvels. The magicians declare that it is impossible for a wicked or impure man to work truly by the magic art, in which they assert that the spirits are compelled against their will by pure men. The magicians further profess to have been forewarned by their art of this legislation against them. They hesitate, however, to summon the demons to their aid lest those spirits avail themselves of the opportunity to destroy the populace utterly. Instead an assembly of 89 masters from Naples, Athens, and Toledo has chosen Honorius, son of Euclid,[901] a master of Thebes, to reduce their magic books to one volume containing 93 chapters, which they may more readily conceal and preserve. And inasmuch as it has pleased the prelates and princes to order the burning of their books and the destruction of schools of