As you truly say, the origin of the branching-horned ram as the fleshly symbol of the great God Ammon, “the King of the Gods,” “the unrevealed,” “the hidden one,” still remains a mystery. We know that the solar god Ra, whose supremacy in the “Old Kingdom” was so marked, from the Fifth Dynasty onwards and was at its zenith in the Twelfth Dynasty, became linked in the religion of the “Middle Kingdom” with Ammon, hitherto an obscure local god of Thebes who attained some prominence in the political rise of the city and was called by the priests Ammon-Ra. His cult gradually spread over the civilized world, and in the Roman period he was worshipped as Jupiter Ammon. He was essentially the god of Oracles, but how he came to have his special sanctuary in the Western Desert is still a mystery, though your account of this in the legends of the Arabic history of Siwa (Chapter III) throws an interesting light on the subject. Herodotus, we know, gave to Siwa the name of Oasis (probably derived from the Coptic word Ouahe, to dwell, from which the Arabic Wa is derived)—that is to say a fertile spot surrounded by desert, and thus from Siwa all other oases have derived their names. To Siwa then came kings and wise men of the East, merchants and pilgrims, all bringing offerings to the temple of the god and soliciting the advice of the Oracle on their mundane affairs. For a thousand years and more these treasures were accumulating, but where are they now? As Egyptian research has yielded up unexpected buried treasure, may not the ancient god still have something in reserve for the archæologist and treasure-seeker who is bold enough to undertake excavation work in the little village of Aghourmi, some two miles east of Siwa, where the ruins of the Temple of Ammon still exist? Your interesting account of these ruins and the legends you have so sedulously culled from the Siwans, cannot fail again to create interest in the hidden treasures of the desert. One who has had some terrible experiences at the hands of the Senussi Arabs during the war—I refer to the gallant and gifted author of that thrilling story, _Prisoners of the Red Desert_, Captain Gwatkin-Williams, R.N.—writes, “It may be that this twentieth century of ours, this era of fish and bird men, may see lifted the mystery which shrouds the hidden treasure of Ammon, the ‘Unrevealed,’ for, so far as our limited modern information goes, those treasures have never yet been discovered.”