Hambidge, Jay, 1867-1924 · New Haven : Yale University Press · leaf 50
34 DYNAMIC SYMMETRY which consists of a square and two whirling square rectangles or the ratio 1.309. / / 1.309 1 Fig. 13. The area AB, in Fig. 14, is composed of a square and a root-five rectangle, as is also the area BC. The areas BD, BE, are 1.309 rectangles. … Fig. 14. The ratio 1.382 is obtained by dividing 1.309 into 1.809. It is represented by the area AB in Fig. 15, and consists of a square plus .382 and this fraction is the reciprocal of 2.618, i. e., a square plus a whirling square rectangle. Also, if this ratio of 1.382 is divided by two, it will…
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