413. This border was remarkable for the pleasing combinations of the flowers among themselves, and of the flowers with their leaves. In spite of the multiplicity of colours, and of the hues of red and violet, there was no disagreeable juxtaposition, except that of a pomegranate next to a rose; but the contact only took place at one point, and the two flowers were in very different positions. _Black Ground._ 414. The whole lighter than upon a white ground. Orange finer, brighter than upon a white ground. White the same. Green lighter, redder. The roses and the violets gain nothing from the black. _Red-Brown Ground._ 415. The whole lighter than upon a white ground. Whites and greens of fine effect. An orange-flower contiguous to the ground, for the reason explained above (407), acquires a brilliancy which it has not upon a white ground. _Orange Ground._ 416. The whole more sombre, duller than upon a white ground. Orange-flowers and roses dull, lilacs bluer. This assortment is not good. _Yellow Ground._ 417. The orange-flower contiguous to the ground evidently loses vivacity in comparison with the white ground. The whites are less beautiful than upon a red ground. The greens are bluer than upon a white ground. The roses become bluer, the violets acquire some brilliancy. The whole effect is good, because there is but little yellow in the border, and but little orange contiguous to the ground. _Green Ground._ 418. The ground being fresher than the green of the leaves, had not a good effect, relatively to them. On the other hand, the green in the border was in too small a quantity to produce a harmony of analogy, and it had not sufficient red for a harmony of contrast. _Blue Ground._ 419. The oranges have a fine effect, the greens were reddened as well as the whites. The roses and the lilacs lost some of their freshness. This arrangement did not produce a good effect, because there was not sufficient yellow or orange in the border. _Violet Ground._ 420. Orange more beautiful than upon a white ground. Roses, and violets especially, less beautiful than upon a white ground. A poor assortment. _Grey Ground._ 421. As might be easily foreseen, this ground was extremely favourable to all the colours of the border. 422. The examination we have just made of four sorts of borders enables us to verify the exactness of the conclusions which are directly deducible from the law of simultaneous contrast of colours, and presents to us effects which we could scarcely have deduced from the same law without the aid of experiment. I now speak— 1. Of the influence which a complementary exercises by imparting _brilliancy_ to the colour to which it is added.