The Hunting of the Snark Becker Lennon, the poem's "motif of loss of name or identity" is typical of Carroll's work. Richard Kelly writes that the poem contains a "theme of annihilation." Furthermore, Edward Guiliano feels that the "Snark" is within the nonsense tradition of Thomas Hood and, especially, W. S. Gilbert, the librettist of the famous Gilbert and Sullivan team. According to him, a case can be made for a direct influence of Gilbert's Bab Ballads on "The Hunting of the Snark", based on the fact that Carroll was well-acquainted with the comic writing and the theatre of his age. In response to various
Lewis Carroll with a bloody nose, which he recorded in his diary and noted that the episode left him not feeling himself for "quite sometime afterward". This attack was diagnosed as possibly "epileptiform" and Carroll himself later wrote of his "seizures" in the same diary. Most of the standard diagnostic tests of today were not available in the nineteenth century. Yvonne Hart, consultant neurologist at the John Radcliffe Hospital, Oxford, considered Dodgson's symptoms. Her conclusion, quoted in Jenny Woolf's 2010 "The Mystery of Lewis Carroll", is that Dodgson very likely had migraine, and may have had epilepsy, but she emphasises that she