is well adapted for the general exemplification of the nature of chiaro-scuro, but it is not altogether sufficient. The softened unity of such complete rotundity tends to the vapoury, and in order to serve as a principle for effects of art, it should be composed of plane surfaces, so as to define the gradations more.
855.
The Italians call this manner "il piazzoso;" in German it might be called "das Flächenhafte."59 If, therefore, the sphere is a perfect example of natural chiaro-scuro, a polygon would exhibit the artist-like treatment in which all kinds of lights, half-lights, shadows, and reflexions, would be appreciable.—Note EE.
856.
The bunch of grapes is recognised as a good example of a picturesque completeness in chiaro-scuro, the more so as it is fitted, from its