Angelic Magic by the Days of the Week

The Heptameron, or Elementa Magica, is a short and practical manual of conjuration organised around the seven days of the week, giving for each day its ruling angel, the presiding spirits, and the colours, perfumes, seals and words of the magic circle, angelic and planetary in emphasis rather than demonic. It is attributed to Pietro d'Abano (Peter of Abano, c. 1250-1316), the Paduan physician and philosopher, but the attribution is doubtful: d'Abano was long dead when the text surfaces, and it is usually regarded as pseudonymous, a later work fathered on a famous name with a reputation for magic. It was printed in the late fifteenth or sixteenth century and is most often found appended to the spurious Fourth Book of Occult Philosophy ascribed to Agrippa, with which it travelled as a practical companion. Its careful, hour-by-hour, day-by-day tabulation of angelic correspondences made it a much-used working handbook and a direct source for the ceremonial magic of later centuries, including the Golden Dawn revival.