D. R. (David Ramsay) Hay - Böcker

Nomenclature of Colours, Applicable to the Arts and Natural Sciences, to Manufactures, and Other Purposes of General Utility

Original Geometrical Diaper Designs

Accompanied by an Attempt to Develop and Elucidate the True Principles of Ornamental Design, as Applied to the Decorative Arts

Proportion, or, The Geometric Principle of Beauty, Analysed