Cameron photo of Darwin

Charles Darwin, photographed by Julia Margaret Cameron (1868). Reprinted in Charles Darwin: His Life Told in an Autobiographical Chapter, and in a Selected Series of His Published Letters, edited by Francis Darwin. London: John Murray, Albemarle Street. 1892. This image is in the public domain in the United States as its copyright has expired. Courtesy of Wikimedia Commons: http://en.wikipedia.org/wiki/File:Charles_Darwin_by_Julia_Margaret_Cameron_2.jpg