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 as any number or object has to either have an attribute or not have it. Carroll diagrams are often learnt by schoolchildren, but they can also be used outside the field of education, since they are a tidy way of categorising and displaying information. 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