Hambidge, Jay, 1867-1924, Yale University. Rutherford Trowbridge memorial publication fund · New Haven, Conn., and New York city, Yale university press; [etc., etc.] · leaf 28
but it possesses a property by which it may readily be trans- formed into a rectangular spiral. The spiral in nature is the result of a process of continued proportional growth. This will be clear if we consider a series of cells produced during a period of time, the first cell growing according to… … The curve of the coil is a logarithrnic spiral in which the law of proportion is inherent. A distinctive feature of this curve is that when any three radii vectors are drawn, equi-angular distance apart, the middle one is a mean proportional between the other two; in other words, the three vectors,…
Design · Vases, Greek
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