Hay, D. R. (David Ramsay), 1798-1866 · Edinburgh and London : W. Blackwood and sons · leaf 285
which the values have been given in the above table, hasalready been fully described in the text. But the exhibition ofthe first members of the series in a single diagram, may renderthe relation which they hold to each other more easily deducible;and for this purpose also we shall suppose the… … centre. Draw C D at right angles to A B, bisect C B in E,make E G = A E, draw the perpendicular E F, and describethe ellipse A F U, having A G for its major axis, and passingthrough F. Next bisect E G in H, make H K = A H, drawthe perpendicular H I, and describe the ellipse A I K. Bybisecting H K…
Aesthetics · Proportion (Art)
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