(Andrealphus, from Collin de Plancy's Dictionnaire Infernal: Paris, 1863)

"Andrealphus is a great marquesse, appearing as a peacocke, he raiseth great noises, and in humane shape perfectlie teacheth geometrie, and all things belonging to admeasurements, he maketh a man to be a subtill disputer, and cunning in astronomie, and transformeth a man into the likenes of a bird, and there are under him thirtie legions." (Scot, Discoverie of Witchcraft, page 224).

We know that this demon is very vain and proud, since he comes in the form of a peacock. The animal forms assumed by the demons express their true natures and personalities in a symbolic way. "Admeasurement" is an old word for practical mathematics. It was also known as mensuration. By astronomy the demon means practical astrology, the actual casting and interpretation of astrological charts. It is unlikely that this demon could physically change a human being into the shape of a bird, but more probable that he merely cast a glamour over the victim so that he thought himself to be a bird, and saw himself as a bird.