Structure of the eye, 1535.

Two wood-cuts, one hand-coloured. Plate taken from the book of Psychology, part of the 'Margarita Philosophica' by Gregor Reisch (1467?-1525). First printed in 1503, it is divided into twelve 'books', with each one dealing with the Sciences of Grammar, Dialectic, Rhetoric, Arithmetic, Music, Geometry, Astronomy, Principles of Natural Philosophy, Origin of Natural Objects, Psychology, Logic and Ethics.