Philosopher and man of letters. Fellow, Trinity Hall, Cambridge, 1854–67; tutor, 1856–62. Left Cambridge for London in 1864 to pursue a literary career. Contributed articles to newspapers and journals on a wide variety of subjects. Editor of the Cornhill Magazine, 1871–82. First editor of the Dictionary of national biography from 1882. Knighted, 1902.
(See the bibliography for full references to sources)