himself and to others.
XVI.
DECREASE OF THE APPEARANCE OF COLOUR.
243.
We need only take the five conditions (210) under which the appearance of colour increases in the contrary order, to produce the contrary or decreasing state; it may be as well, however, briefly to describe and review the corresponding modifications which are presented to the eye.
244.
At the highest point of complete junction of the opposite edges, the colours appear as follows (216):—
| Yellow-red. | Blue. |
|---|---|
| Green. | Red. |
| Blue-red. | Yellow. |
245.
Where the junction is less complete, the appearance is as follows (214, 215):—
| Yellow-red. | Blue. |
|---|---|
| Yellow. | Blue-red. |
| Green. | Red. |
| Blue. | Yellow-red. |
| Blue-red. | Yellow. |