The Hunting of the Snark of the poem as a child. Additionally, it has also been alluded to in fiction, such as "Perelandra" (1943) by C.S. Lewis; television, such as "" episode of the British TV crime drama "Lewis"; court rulings, such as in Parhat v. Gates (2008); a phenomenon in superfluidity; graph theory; geography, as a Snark Island and Boojum Rock exist in the Andaman and Nicobar Islands in the Bay of Bengal; Japanese animation, such as "Ghost Hound" (2007–08); and in video games, such as "Half-Life" (1998) and "American McGee's Alice" (2000). Various themes have been suggested by scholars. According to biographer Florence
Carroll diagram Carroll diagram A Carroll diagram, Lewis Carroll's square, biliteral diagram or a "two-way table" is a diagram used for grouping things in a yes/no fashion. Numbers or objects are either categorised as 'x' (having an attribute x) or 'not x' (not having an attribute 'x'). They are named after Lewis Carroll, the pseudonym of Charles Lutwidge Dodgson. Although Carroll diagrams can be as simple as the first one above, the most well known types are those similar to the second one, where two attributes are shown. The <nowiki>'</nowiki>universe<nowiki>'</nowiki> of a Carroll diagram is contained within the boxes in the diagram,