The Forty-ninth Spirit is Crocell, or Crokel. He appeareth in the Form of an Angel. He is a Duke Great and Strong, speaking something Mystically of Hidden Things. He teacheth the Art of Geometry and the Liberal Sciences. He, at the Command of the Exorcist, will produce Great Noises like the Rushings of many Waters, although there be none. He warmeth Waters, and discovereth Baths. He was of the Order of Potestates, or Powers, before his fall, as he declared unto the King Solomon. He governeth 48 Legions of Spirits.