83. The feeling of Rhythm may be induced, as I have said, by a gradual increase of the number of attractions from measure to measure, an increase of the extent of tone-contrast.
Fig. 104
Increasing the extent of tone-contrast and the number of attractions in the measures of the Rhythm in [Fig. 103], we are able to force the eye to follow the series in the direction contrary to the habit of reading, that is to say from right to left.
A decrease in the forces of attraction in connection with a decrease of scale is familiar to us all in the phenomena of perspective. The gradual disappearance of objects in aerial perspective does away with the attraction of a greater crowding together of objects in the distance.
Fig. 105
In this case the diminution of scale has been given up and there is no longer any crowding together. There is no chance of this rhythm being read from left to right except by an effort of the will. The increase of attractions toward the left is much more than sufficient to counteract the habit of reading.
84. The force of a gradual coming together of attractions, inducing movement in the direction of such coming together, is noticeable in spiral shapes.
