CHAPTER IV
. (XVIII.)
How Colours in oil painting, in fresco, or in tempera should be blended: and how the Flesh, the Draperies and all that is depicted come to be harmonized in the work in such a manner that the figures do not appear cut up, and stand out well and forcibly and show the work to be clear and comprehensible, 218
§ 80. _On Colouring_ (218).
## CHAPTER V . (XIX.)
Of Painting on the Wall, how it is done, and why it is called Working in Fresco, 221
§ 81. _The Fresco process_ (221).
## CHAPTER VI . (XX.)
Of Painting in Tempera, or with egg, on Panel or Canvas, and how it is employed on the wall which is dry, 223
§ 82. _Painting in Tempera_ (223).
##