It may be shown, in tabular arrangement, thus:—­

REALISM............................................CONV

ENTIONALISM.

    COMPLETE PICTORIAL REALISM, in which all parts are realistically
    represented (see Sec. 10).

      SEMI-PICTORIAL REALISM, in which the Back-ground is reduced to
      a flat-tint, while all the remaining parts are realistically
      represented (see Sec. 11).

        DECORATIVE REALISM, in which the chief Feature (only)
        is realistically represented, and all the other parts are
        reduced to conventional renderings (see Sec. 12).

          COMPLETE CONVENTIONALISM, in which all parts are reduced to
          conventional renderings (see Conventionalism).

Inasmuch as there is some realistic part remaining in each of the first three methods—­these are classified under the heading of REALISM.

(ii) According to the Degree in which color, gradation, or shading, is sacrificed, in consequence of the limited Means at the disposal of the Artist; resulting in the gradual departure from Realism to the most severe Conventionalism.  The reduction is applied to all parts of the work.  This is a scale of reduction in Degree.  There are two Varieties in each degree; and they are marked with italic letters.

It may be shown, in tabular arrangement, thus:—­

REALISM.............................................CON

VENTIONALISM.

  COMPLETE REALISM, in which all parts are represented, in
  proper colors, and perfect gradation, with correct light and
  shade (see Sec. 10).

FIRST DEGREE OF CONVENTIONALISM, in which all parts are represented:  (a) By a reduced number of Pigments, the other qualities remaining; (b) By reduction in gradation and shading to Flat-tints of several pigments (see Sec. 15).

SECOND DEGREE OF CONVENTIONALISM, in which all parts are represented:  (c) By a reduction to Monochrome of color, with Gradation (only) remaining; (d) By reduction to Monochrome of White and Black, with Gradation (only) remaining (see Sec. 16).

THIRD DEGREE OF CONVENTIONALISM, in which all parts are represented:  (e) By reduction to a Flat-tint of one pigment on a ground of another; (f) By reduction to a Flat-tint of White on Black, or vice versa (see Sec. 17).

          ULTIMATE CONVENTIONALISM, in which all parts are
          represented; (g) By reduction to Outline of several
          pigments; (h) Reduction to Outline of one pigment (see Sec.18).

Inasmuch as Realism ceases so soon as any reduction in the three qualities (of color, gradation, and shadow) is introduced; and the treatment becomes more Conventional in each method after the first—­these are classified under the heading of CONVENTIONALISM.

[There is an analogous scale of reduction in Form, from the Complete-relief of an isolated Statue to the Flatness of a Floor-plate; but this does not belong to the present subject.]