XVIII. Diagram of the Geometrical Construction of the ancient Grecian Ornament called the Honeysuckle.
D. R. Hay delᵗ. G. Aikman sc.
XIX. An additional Illustration of the Contour of the Human Figure, as viewed in Front and in Profile.
D. R. Hay delᵗ. G. Aikman sc.
XX. Diagram shewing the manner in which the Elliptic Curves are arranged in order to produce an Outline of the Form of the Human Figure as viewed in Front.
D. R. Hay delᵗ. G. Aikman sc.
XXI. Diagram of a variation on the Form of the Portland Vase.