Their height in no wise depends on the place they occupy in the perspective of the tableau, but only upon the number of rows required by the artist to carry out his idea.

If two rows of figures are sufficient, he divides his space horizontally into equal parts; if he requires three rows, he divides it into three parts; and so on.

When, however, it is a question of mere accessories, they are made out upon a smaller scale.
Secondary scenes are generally separated by a horizontal line, but this line is not indispensable.

When masses of figures formed in regular order had to be shown, the vertical planes lapped over, so to speak, according to the caprice of the limner.

At the battle of Kadesh, the files of Egyptian infantry rise man above man, waist high, from top to bottom of the phalanx (fig.