Thompson's description of the mathematical beauty of nature eventually inspired others, such as Alan Turing, to develop the scientific explanation of morphogenesis, the process by which patterns are formed in plants and animals. Digital facsimile of the 1917 edition from the Internet Archive at this link. Digital facsimile of Thompson's revised second edition (1942) from the Internet Archive at this link. Abridged edition edited by John Tyler Bonner, Cambridge, 1992.