(demon Forcas from Collin de Plancy's Dictionnaire Infernal, 1863)
The demon Forcas or Furcas is described in the Goetia in the following terms: "He is a Knight, and appeareth in the Form of a Cruel Old Man with a long Beard and a hoary Head, riding upon a pale-coloured Horse, with a Sharp Weapon in his hand. His Office is to teach the Arts of Philosophy, Astrology, Rhetoric, Logic, Cheiromancy, and Pyromancy, in all their parts, and perfectly. He hath under his Power 20 Legions of Spirits."
Chiromancy or palmistry is the divinatory art of reading the lines of the human hand. Pyromancy is divination by fire. Great age is often associated in magic with arcane wisdom. For example, the ancient god Saturn presides over difficult studies and dark secrets.