From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
To Try if a Person is Chaste.
Sap of radish squeezed into the hand will prove what you wish to know. If they do not fumble or grabble they are all right.
Timeline of related events
1725Publication of Egyptian Secrets of Albertus Magnus (lists this spell)
1869English-language translation of Egyptian Secrets (lists this spell)
In this decade: Publication of The Book of Forbidden Magic (lists this spell)