"Have no fears on that score," interposed Battell. "We have the principal parts of the machinery completed, and all that remains to be done, is for you to take a trial trip to the southern verge and see how it will work in a storm, and in the meantime we will try our hands at constructing one that will be proof against the cold of a polar winter. Better go to the southern verge now, while it is comparatively temperate and test our improvements in a gale." "All right," I said. "I am willing. But who will go with me? I ought to have the assistance of someone who could not only stand the exposure, but be able to make observations. It will keep one person busy to manage the ship during a storm, no matter how perfect your machinery may be." "I suggest," said Battell, "that you take Lief and Eric, who are first-class mechanics as well as scientists. This is their request, and it ought to be granted. We need both Huston and Captain Ganoe, to assist in the construction of a cold proof vessel. This is the plan of work that I suggest. How will it suit you?" "Anything suits me that looks toward success," I said. "Since you have already completed the inventions that I had contemplated, it is but fair that you dictate how they should be used until we can improve on your improvements, which, by the way I hope may not be necessary." "Oh yes, it will," said Battell. "Just as soon as there is no room for improvement, everything will be perfect, and with nothing to do, nothing to live for and no improvements to make, constituted as we are now, we would very likely be just as unhappy, as we are now anxious to improve the airship or to accomplish any other object that is dear to us. This is a working world and we are workers, and when there is no work to do, there will be no use for us on our present plane of development." "You talk like a philosopher," I said. "One would think you had graduated from an Altrurian university." "So I have," said Battell. "Were you not talking Altrurian philosophy all the time we were together on the Ice King? So I was to some extent prepared for what we have found in this highly developed country." "But what's the matter?" I asked, as Battell's airship came to a full halt, and seemingly began to fall. Before I recovered from my surprise, it had settled lightly on the top of a stupendous structure, and MacNair was evidently aiming for the same place, as he set our ship to circling around in the way I have often described. I had seen the practical workings of one of Battell's improvements, and could not help seeing that it was an undoubted success. The mechanism that would control the vessel while dropping toward the earth, seemed to me, more difficult of construction than that which would hold it on its course against contrary side winds.