It is needless to say that the scheme of filling out the sketch of the history of the Urquhart family was never carried out, if ever it had been seriously entertained by Sir Thomas; and we are left in ignorance of the names of the Arabic, Greek, Latin, and other authors on whose testimony our belief in the authenticity of the narrative was to have been firmly based. In the absence of this our judgment is left in suspense, unless, indeed, we conclude that, as the genealogy begins and ends with the names of actual persons,[194] the intermediate part is not likely to have been a mere fabrication. If the links are sound in the places where we can test them, it requires no very great exercise of credulity to believe that they are the same throughout. Matthew Arnold on one occasion laid down the principle, that a book should either "edify the uninstructed," or "inform the instructed." Sir Thomas Urquhart's "ΠΑΝΤΟΧΡΟΝΟΧΑΝΟΝ" certainly justifies its existence according to this standard of judging literature; for if it does not serve to edify the uninstructed, it _does_ inform the instructed, since the information it contains is not to be found in any other quarter.[195] One's faith in the credibility of his narrative is, however, a little shaken by finding that in the second book of his favourite author, Rabelais, the genealogy of the giant Pantagruel is carried up to a period far beyond the Flood. It may be a mere coincidence, but it is one of those coincidences that make us very thoughtful.[196] At the time when Sir Thomas Urquhart wrote, Scotland was supposed to have had a dynasty of kings and a connected political history dating far back before the birth of Christ. The impudent fictions of Hector Boece, whose history of Scotland was published in 1526, had been accepted by the public, and were regarded as genuine facts even by such literary personages as Erasmus and Paulus Jovius. Perhaps Sir Thomas thought that a credulity which had endured the considerable strain which Boece had put upon it might be trusted to bear a still greater weight. Indeed, he interwove the story of his family with that which was current as the genuine history of his native land. According to the mythical history of Scotland, Gathelus, a Grecian prince, having quarrelled with his father Miol, took refuge in Egypt, and married Scota, a daughter of the Pharaoh who perished in the Red Sea. The young people came west and founded Portugal (_i.e._ Port of Gathelus), and then journeyed north to Scotland, bringing with them, as part of their baggage, the coronation-stone yet to be seen in Westminster Abbey. Their descendant Fergus, "the father of a hundred kings," was the founder of the Scottish monarchy. These shadowy persons appear again, "with the moonlight streaming through them," and play their parts in the genealogy of the Urquharts.