"Well," he began, "these are the facts--a tedious introduction, I fear, but necessary. Years ago, when I was first reading Ben Jonson's _Discoveries_, that queer jotting of his, 'Eupompus gave splendour to Art by Numbers,' tickled my curiosity. You yourself must have been struck by the phrase, everybody must have noticed it; and everybody must have noticed too that no commentator has a word to say on the subject. That is the way of commentators--the obvious points fulsomely explained and discussed, the hard passages, about which one might want to know something passed over in the silence of sheer ignorance. 'Eupompus gave splendour to Art by Numbers'--the absurd phrase stuck in my head. At one time it positively haunted me. I used to chant it in my bath, set to music as an anthem. It went like this, so far as I remember"--and he burst into song: "'Eupompus, Eu-u-pompus gave sple-e-e-endour . . .'" and so on, through all the repetitions, the dragged-out rises and falls of a parodied anthem. "I sing you this," he said when he had finished, "just to show you what a hold that dreadful sentence took upon my mind. For eight years, off and on, its senselessness has besieged me. I have looked up Eupompus in all the obvious books of reference, of course. He is there all right--Alexandrian artist, eternized by some wretched little author in some even wretcheder little anecdote, which at the moment I entirely forget; it had nothing, at any rate, to do with the embellishment of art by numbers. Long ago I gave up the search as hopeless; Eupompus remained for me a shadowy figure of mystery, author of some nameless outrage, bestower of some forgotten benefit upon the art that he practised. His history seemed wrapt in an impenetrable darkness. And then yesterday I discovered all about him and his art and his numbers. A chance discovery, than which few things have given me a greater pleasure. "I happened upon it, as I say, yesterday when I was glancing through a volume of Zuylerius. Not, of course, the Zuylerius one knows," he added quickly, "otherwise one would have had the heart out of Eupompus' secret years ago." "Of course," I repeated, "not the familiar Zuylerius." "Exactly," said Emberlin, taking seriously my flippancy, "not the familiar John Zuylerius, Junior, but the elder Henricus Zuylerius, a much less--though perhaps undeservedly so--renowned figure than his son. But this is not the time to discuss their respective merits. At any rate, I discovered in a volume of critical dialogues by the elder Zuylerius, the reference, to which, without doubt, Jonson was referring in his note. (It was of course a mere jotting, never meant to be printed, but which Jonson's literary executors pitched into the book with all the rest of the available posthumous materials.) 'Eupompus gave splendour to Art by Numbers'--Zuylerius gives a very circumstantial account of the process. He must, I suppose, have found the sources for it in some writer now lost to us."