The first chapter refers on how to deal with the angels of the several hours of the day (meaning day and night), to their seals, their nature, their servants (called Dukes), the relation of these angels with the seven planets known at that time, the proper astrological aspects to invoke them, their names (in a couple of cases coinciding with two of the seventy-two demons mentioned in the Ars Goetia, the conjuration and the invocation to call them, the Table [sic] of practice.
The second chapter concerns the angels that rule over the zodiacal signs and each degree of every sign, their relation with the four elements, Fire, Earth, Water and Air, their names, and their seals. These are called here the angels of men, because all persons are born under a zodiacal sign, with the Sun at a specific degree of it.