Following the seminal paper by H. Petard in 1938 introducing to the mathematical theory of big game hunting, a good many others were prompted to add to this literature. The following is one of these articles.

#### A new method of catching a lion

– I. J. Good

In this note a definitive procedure will be provided for catching a lion in a desert (see [1]).

Let *Q* be the operator that encloses a word in (single) quotation marks. Its square *Q*^{2} encloses a word in double quotes. The operator clearly satisfies the law of indices, *Q*^{m}*Q*^{n} = *Q*^{m+n}. Write down the word *lion*, without quotation marks. Apply it to the operator *Q*^{-1}. Then a lion will appear on the page. It is advisable to enclose the page in a cage before applying the operator.

#### References

[1] H. Petard. A contribution to the mathematical theory of big game hunting, Amer. Math. Monthly 45 (1938) p446-447.

*Amer. Math. Monthly *72 (1965), p. 436.