485px-PSM_V09_D668_George_Henry_Lewes

Engraving of G. H. Lewes

Engraving of George Henry Lewes (author unknown), Popular Science Monthly, volume 9 (1876). This image is in the public domain in the United States because its copyright has expired. Courtesy of Wikipedia Commons: http://en.wikipedia.org/wiki/File:PSM_V09_D668_George_Henry_Lewes.jpg