THE reader may be inclined to question the necessity for a whole chapter to be devoted to such a matter as this. "Surely anybody who has the curiosity to do so can look the words up in a dictionary!" Or he may object that the proper place to define and expound one's terms is in the opening chapter. It will be found, however, that no clear-cut and simple definition of, for example, the word labyrinth itself is to be found in any dictionary, and that with regard to its derivation authorities are…