The science of beauty, as developed in nature and applied in art

by David Ramsay Hay

V. Four Ellipses described from Foci, determined by harmonic parts of the Right Angle, shewing in each the Scalene Triangle, the Isosceles Triangle, and the Rectangle to which it belongs.

D. R. Hay delᵗ. G. Aikman sc.

VI. The Composite Ellipse of ¹⁄₆ and ¹⁄₈ of the Right Angle, shewing its greater and lesser Axis, its various Foci, and the Isosceles Triangle in which they are placed.

D. R. Hay delᵗ. G. Aikman sc.

VII. The Composite Ellipse of ¹⁄₄₈ and ¹⁄₆₄ of the Right Angle, shewing how it forms the Entasis of the Columns of the Parthenon of Athens.

D. R. Hay delᵗ. G. Aikman sc.

VIII. Sectional Outlines of two Mouldings of the Parthenon of Athens, full size, shewing the harmonic nature of their Curves, and the simple manner of their Construction.