1988, D. August Hunt, The Road of the Sun[1], →ISBN, page 8:
[…] Iasius ('healer') is the physic finger; Idas ('he of Mount Ida' — Rhea's seat) is the oracular little finger.
1998, Douglas Monroe, The Lost Books of Merlyn: Druid Magic from the Age of Arthur[2], →ISBN, page 322:
Alder, physic finger, By power of divination, Diagnose all maladies of a doubtful mind.
2004, Nathaniel Harris, Witcha: A Book of Cunning[3], →ISBN, page 107:
From the confessions given by these witches, it seems that their initiation was sealed by a mark made with a pin prick upon the upper and middle joints of the physic finger.