I thought they were hallucinations, Deidre murmured.
Keim) - " Veridical Hallucinations " ?
We might expect persons who have experienced spontaneous visual hallucinations, of the kind vulgarly styled "ghosts" or "wraiths," to succeed in inducing pictures in a glass ball.
Among these phenomena are: trance and unconsciousness, sickness, death, clairvoyance, dreams, apparitions of the dead, wraiths, hallucinations, echoes, shadows and reflections.