The formal invitations set no hour for the excursion as it was understood that the exact time depended upon weather conditions of which we would later be notified. When this notice came the hour set was in the conventional evening of the Royal Level, but corresponding to about three A.M. by solar time. The party gathered at the suite of the Countess Luise and numbered some forty people, for whom a half dozen guides were provided in the form of officers of the Roof Guard. The journey to our romantic destination took us up some hundred metres in an elevator, a trip which required but two minutes, but would lead to a world as different as Mount Olympus from Erebus. But we did not go directly to the roof, for the hour preferred for that visit had not yet arrived and our first stop was at the swine levels, which had so aroused my curiosity and strained belief when I had first discovered their existence from the chart of my atlas. As the door of the elevator shaft slid open, a vast squealing and grunting assaulted our ears. The hours of the swine, like those of their masters, were not reckoned by either solar or sidereal time, but had been altered, as experiment had demonstrated, to a more efficient cycle. The time of our trip was chosen so that we might have this earthly music of the feeding time as a fitting prelude to the visioning of the silent heavens. On the visitors' gangway we walked just above the reach of the jostling bristly backs, and our own heads all but grazed the low ceiling of the level. To economize power the lights were dim. Despite the masterful achievement of German cleanliness and sanitation there was a permeating odour, a mingling of natural and synthetic smells, which added to the gloom of semi-darkness and the pandemonium of swinish sound produced a totality of infernal effect that thwarts description. But relief was on the way for the automatic feed conveyors were rapidly moving across our section. First we heard a diminution of sound from one direction, then a hasty scuffling and a happy grunting beneath us and, as the conveyors moved swiftly on, the squealing receded into the distance like the dying roar of a retreating storm. The Chief Swineherd, immaculately dressed and wearing his full quota of decorations and medals, honoured us with his personal presence. With the excusable pride that every worthy man takes in his work, he expounded the scientific achievements and economic efficiency of the swinish world over which he reigned. The men of the party listened with respect to his explanations of the accomplishments of sanitation and of the economy of the cycle of chemical transformation by which these swine were maintained without decreasing the capacity of the city for human support. Lastly the Swineherd spoke of the protection that the swine levels provided against the effects of an occasional penetrating bomb that chanced to fall in the crater of its predecessor before the damage could be repaired.