Keywords: Three Books of Occult Philosophy - Initial Y.png Woodcut initial Y from a page of Three Books of Occult Philosophy by Henry Cornelius Agrippa http //archive lib msu edu/AFS/dmc/arts/public/all/threebooksoccult/ANL008 gif 1651 Unknown engraver PD-old-100 Y as an initial Three Books of Occult Philosophy De Occulta Philosophia 1651 |