90. When a line or linear progression is inverted upon any axis or
center, and we see the original line and its inversion side by side, we
have a Balance of Attitudes.
[Illustration: Fig. 117]
The relation of attitudes I, II, of III, IV, and of I, II, III, IV,
is that of Symmetrical Balance on a vertical axis. The relation of
attitudes I, IV, and of II, III, is a relation of Balance but not
of Symmetrical Balance. This is true, also, of the relation of I,
III and of II, IV. Double inversions are never symmetrical, but they
are illustrations of Balance. The balance of double inversions is
central, not axial. These statements are all repetitions of statements
previously made about positions.