PROLEGOMENA AND GENERAL INTRODUCTION TO THE BOOK ON PAINTING

Clavis Sigillorum and Index of Manuscripts.--The author's intention

to publish his MSS. (1).--The preparation of the MSS. for

publication (2).--Admonition to readers (3).--The disorder in the

MSS. (4).--Suggestions for the arrangement of MSS. treating of

particular subjects (5--8).--General introductions to the book on

painting (9--13).--The plan of the book on painting (14--17).--The

use of the book on painting (18).--Necessity of theoretical

knowledge (19, 20).--The function of the eye (21--23).--Variability

of the eye (24).--Focus of sight (25).--Differences of perception by

one eye and by both eyes (26--29).--The comparative size of the

image depends on the amount of light (30--39).