“The great work on magic, many copies of which had been executed by the scribes of Ashurbanipal, according to the pattern placed centuries since in the library of the famous school for priests at Erech in Chaldea, was composed of three different books.
We know the title of one of the three, “The Wicked Spirits,” for we find at the end of each of the tablets, which come from it and which have been preserved entire, “Tablet No. __ of the Wicked Spirits.”
As the title shows, it was filled exclusively with formulae of conjurations and imprecations, which were designed to repulse demons and other wicked spirits, to avert their fatal action, and to shelter the invoker from their attacks.
Portions of a second book exist, and, judging from what remains of it, it would seem to be formed of a collection of these incantations, to which was attributed the power of curing various maladies.
Lastly, the third book contained Hymns to certain gods. A supernatural and mysterious power was attributed to the chanting of these hymns, which are, however, of a very different character from the regular liturgical prayers of the official religion, a few of which have been preserved to us.
It is curious to notice that the three parts composing thus the great work on magic, of which Sir Henry Rawlinson has found the remains, correspond exactly to the three classes of Chaldean doctors, which Daniel (ii, 2; v. II) enumerates, together with the astrologers and divines (Kasdim and Gazrim), that is, the Khartumim or conjurors, the Chakamim or physicians, and the Asaphim or theosophists.”
François Lenormant, Chaldean Magic, “The Magic and Sorcery of the Chaldeans,” Chapter I, 1878, pp. 13-4. Originally published as La Magie Chez Les Chaldeens, 1847.