The reference to Topham’s letter was added as a note to the second edition of Expression, edited by Francis Darwin and published after CD’s death; the note refers to CD’s claim that Shakespeare erred in Romeo and Juliet when he gave Juliet a speech that implied she did not blush in the dark (Expression, p. 336; Expression 2d ed., p. 355, n. 38). Topham has not been further identified.