Logarithmic Spiral Small 320×137 Medium 640×275 Large 1024×439 Download Tiff Original 2400×1030 | (141.8 KB) Description Illustration showing a logarithmic spiral/curve. Keywords analytic geometry, curve, log, logarithm, logarithmic spiral Galleries Spirals Source: Frederick Converse Beach Encyclopedia Americana (New York, NY: Americana Company, 1903)
