Hyperbolic spiral Small 320×315 Medium 640×630 Large 1024×1008 Download Tiff Original 2400×2363 | (403.9 KB) Description A logarithmic spiral. Keywords curve, geometry, logarithmic, spiral Galleries Spirals Source: Finley, John H. Nelson's Perpetual Loose-Leaf Encyclopedia (New York City: Thomas Nelson and Sons, 1917) 11:379
