And so the work went on, steadily yet rapidly, until at length it so nearly approached completion that the professor was every week enabled to dispense with the services of and pay off an increasingly large number of men. Finally, the day arrived when the score or so of painters and decorators, who then constituted the sole remnant of the professor's late army of workmen, completed their task of beautifying the interior of the aerial ship, and, receiving their pay, were dismissed to seek a new field of labour. The official staff now alone remained, and to these, after making them a pleasant little complimentary speech expressing his appreciation of the zeal and ability with which they had discharged their duties, Herr von Schalckenberg announced the pleasant intelligence that, although he had now no further need of their services, Sir Reginald Elphinstone had, upon his--the professor's--earnest recommendation, successfully used his influence to secure them other and immediate employment. The professor then handed each man a cheque for his salary, including three months' extra pay in lieu of the usual notice of dismissal to which he was entitled, together with a letter of introduction to his new employer, and, shaking hands with the staff all round, bade them good-bye, wishing them individually success in their new posts. Then, watching them file out of the office for the last time, he waited until all had left the premises, when he turned the key in the door, and making his way into the interior of the building shed, found himself at length alone with his completed work. How the professor spent the next few hours no man but himself can say; but it is reasonable to suppose that, man of science though he was, he was still sufficiently human to regard with critical yet innocent pride and exultation the wonderful fabric which owed its existence to the inventive ingenuity of his fertile brain. It is probable, too, that when he had at length gratified himself with an exhaustive contemplation of its many points of interest, he went on board the ship, and with his own eyes and hands made a final inspection and trial of all her machinery, to satisfy himself that everything was complete and ready. At all events, however the professor may have passed those few hours of precious solitude, when he finally handed over the keys to the yard watchman and bade him "good-night" late on that summer evening, his whole bearing and appearance was that of a thoroughly happy and satisfied man. CHAPTER THREE. THE "FLYING FISH."