"No," returned the architect. "These walls are double as well as the floor, with air chambers between, and I can turn hot air into them at pleasure. The windows and doors are all double, also, and Jack Frost can never penetrate this cabin." "What a contrast between this luxurious sail through the sky, and the buffetings upon sea and land, the hunger, cold, and oftentimes death, suffered by former Arctic explorers," said the Professor. "And, Doctor," he continued, "if we make a successful trip, the matter of aerial navigation will have been settled. What a power this ship would have been in the late war of the Rebellion." "The war would have been very quickly terminated if our globe had been in existence at that time," returned Dr. Jones. "We could have sailed above the reach of their best guns and dropped bombs upon them that would have destroyed their forts, gunboats, and armies at will. But I am glad things were as they were. We fought a fair fight to the finish, and settled forever the question of human slavery in America. Had the first few battles of the war been won by the North, the South might have laid down their arms, and have been permitted to retain their institution of slavery. When Lincoln issued his Emancipation Proclamation, I remember that even we soldiers in the field received the news with a sort of shock, and thought our President over-bold. We had not thought of that extreme measure as a result of the war. We were simply out to preserve the Union." "And right well you did it, Doctor," said Denison. "I have always noticed in reading the history of that war, that in the latter part of it you fought with much greater skill and judgment than you did in the first year or two." "That is quite true, and nothing more than what might have been expected," replied Dr. Jones. "It is marvelous what we accomplished with an absolutely empty treasury, no credit, no standing army to speak of, and our little navy scattered to the four ends of the earth. The vast, splendidly drilled armies which we brought into existence as if by magic, were the wonder of the world. We had everything to learn, both North and South, in the matter of logistics. Long lines of communications had to be kept open, and such splendid raiders as John Morgan, Forest, Mosby, etc., were not slow to break them frequently, so that I remember going to bed supperless many times after a hard day's march, because our rations had been captured and burned. Our wagon trains were something immense, while the big Bell tents were in use; but after what were called by the boys 'pup tents,' or 'dog tents,' were introduced, the wagon trains were cut down at least three-fourths. For the pup tents we carried upon our backs, and so dispensed with the great Bell tents that were hauled in wagons. Our trains had been so large and cumbersome that military movements were inconceivably slow, and the war could never have been fought to a successful issue by the North on those lines."