Heptameron or Magical Elements

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Attributed to the famous physician Peter de Abano (1250-1316), the Heptameron ("seven days") details rites for conjuring angels for the Hours of the Day, the Seasons, and the Days of the Week.

It is heavily based on texts of Solomon and  was also apparently one of the chief sources for the Lemegeton.

The remainder of the collection of the book  consisting of medieval spells and stories are authored by the queen of Navarre, Margaret of Angoulême.