Original geometrical diaper designs : accompanied by an attempt to develope and elucidate the true principles of ornamental design, as applied to the decorative arts (1849)
Hay, D. R. (David Ramsay), 1798-1866, Maclure and MacDonald Lithographers · London : D. Bogue · leaf 17
12 ON THE PRINCIPLES OF ORNAMENTAL DESIGN. organ by which it is perceived. The square is the next most consonant form green, purple, and neutral, do to the primaries, blue, red, and yellow. The to the eye, as its angles, although more in number, are less acute than figures T now adopt for this… … to adopt figures corresponding to these, as the 2d, 4th, 6th, and 7th notes in All these figures, except the ellipse, occur naturally from the intersec- music do to the 1st, 3d, and 5th, and as the secondary colours, orange. tions of two lines produced between two circles of the relative proportions
Decoration and ornament · Geometrical drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
