Two or more associated units may be reckoned as one and their united centre is the point on which they balance with others.
There is balance of Line,[2] of Mass,[3] of Light and Dark,[4] of Measure,[5] which is secured upon a scale of attraction which each possesses. Many pictures exhibit these in combination.
The “Lion of the Desert,” by Gerome shows three isolated spots and one line of attraction. The trend of vision on leaving the lion is to the extreme right and thence back along the pathway of the dark distance into the picture to the group of trees. Across this is an oppositional balance from the bushes of the foreground to the mountains of the extreme distance. The only line in the composition, better seen in the painting than in the reproduction, counts much in the balance over the centre. The placement of the important item or subject, has little to do with the balance scheme of a picture. This is the starting point, and balance is a consideration beyond this.
In every composition the eye should cross the central division at least once. This initiates equipoise, for in the survey of a picture the eye naturally shifts from the centre of interest, which may be on one side, to the other side of the canvas. If there be something there to receive it, the balance it seeks is gratified. If it finds [pg 31] nothing, the artist must create something, with the conclusion that some element of the picture was lacking.
In the snow-scene the eye is attracted from the pine-trees to the houses on the left and rests there, no attraction having been created to move it to the other half of the picture.
What is known as divided interest in a picture is nothing more than the doubt established by a false arrangement of balance, too great an attraction being used where less weight was needed. The artist must be the judge of the degree of satisfaction he allows this feeling, but no one can ignore it and obtain unity.
The question of degree must have a caution placed before it; for in an attempt to create a balance on the opposite side of the vertical the tendency is to use too heavy a weight. The whole of the subject is sometimes made to take its place well on one side and another item would seem redundant. Two points will be noticed in all of such cases: that the opposing half may either be cut off without damage, or greatly elongated, and in both forms the picture seems to survive.[6] The fact becomes an argument for the theory of balance across a medial upright line; in the first instance by shifting the line itself into the centre of the subject, and in the second by securing more weight of space with which to balance the subject.
The portrait of [Sarah Bernhardt,] an excellent composition from many points of view, finds its most apparent balance on either side of the [pg 34] sinuous line of light through the centre exhibiting the axis, which many pictures show in varying degrees. The opposing corners are well balanced, the plant over against the dog, with a trifle too much importance left to the dog. Place the finger in observation over the head and forelegs of the dog, taking this much off and the whole composition gains, not only because the diagonal corners then balance, but because the heads of both woman and dog are too important for the same side of the picture.
It would be perfectly possible in the more complete composition to have both heads as they are, but this would demand more weight on the other side; or a shifting of the whole picture very slightly toward the left side.