All late authors agree in these two distinct and widely different modes of the art; 1st, the Ancient, Formal, or Geometric Style; 2d, the Modern, Natural, or Irregular Style. THE ANCIENT STYLE. A predominance of regular forms and right lines is the characteristic feature of the ancient style of gardening. The value of art, of power, and of wealth, were at once easily and strongly shown by an artificial arrangement of all the materials; an arrangement the more striking, as it differed most widely from nature. And in an age when costly and stately architecture was most abundant, as in the times of the Roman empire, it is natural to suppose, that the symmetry and studied elegance of the palace, or the villa, would be transferred and continued in the surrounding gardens.