The _Secret of Secrets_ of the Pseudo-Aristotle is immediately followed in one manuscript by chapters or treatises addressed to Alexander and entitled, _Of ideas and forms_, _Of the impression of forms_, and _Of images and rings_.[807] The theory, very like that of Alkindi, is maintained that “all forms are ruled by supercelestial forms through the spirits of the spheres” and that incantations and images receive their force from the spheres. The seven planets pass on these supercelestial ideas and forms to our inferior world. By selecting proper times for operating one can work good or ill by means of the rays and impressions of the planets. The scientific investigator who properly concentrates and fixes intent, desire, and appetite upon the desired goal can penetrate hidden secrets of secrets and occult science both universal and particular. The writer goes on to emphasize the importance of understanding all the different positions and relationships of the heavenly bodies and also the distribution of terrestrial objects under the planets. He then describes an astrological image which will cause men to reverence and obey you, will repel your enemies in terror, afflict the envious, send visions, and perform other marvelous and stupefying feats too numerous to mention. [Sidenote: And on necromantic images.] As the _Speculum astronomiae_ of Albertus Magnus listed a _Book of Judgments_ by Aristotle among deserving works of astronomy and astrology, so in its list of evil books dealing with necromantic images appear a treatise by Hermes addressed to Aristotle and opening, “Aristotle said, ‘You have seen me, O Hermes,’” and a treatise ascribed to Aristotle with the sinister title, _Death of the Soul_, opening, “Said Aristotle to King Alexander, ‘If you want to perceive.’” This treatise the _Speculum_ calls “the worst of all” the evil books on images. Roger Bacon, too, alludes to it by title as filled with figments of the magicians, but does not name Aristotle as author.[808] Peter of Abano in his _Lucidator_ follows the _Speculum astronomiae_ in listing it among depraved, obscene, and detestable works.[809] [Sidenote: Alexander as an astrologer.]