The work by which he is best known is the "Cambridge Shakespeare" (1863–6), containing a collation of early editions and selected emendations, edited by him at first with John Glover and later with William Aldis Wright. "Gazpacho" (1853) gives an account of his tour in Spain; his "Peloponnesus" (1858) was a contribution to the knowledge of Greece. His visits to Italy at the time of Garibaldi's insurrection, and to Poland during the insurrection of 1863, are described in "Vacation Tourists", ed. Francis Galton, i and iii.