James Joyce's Ulysses, once regarded as obscure and obscene, is now viewed as one of the masterpieces of world literature. Yet Joyce's final novel, Finnegans Wake, to which he devoted seventeen years, remains virtually unread, except by scholarly specialists. Its linguistic novelties, apparently based on an immense learning that few can share, make it appear impenetrable. Joyce's Kaleidoscope attempts to dissolve the darkness and to invite...