182 FOR THE FLAG vessels, having on board Count d’Artigas, Serké, Captain Spade and his crew—with the exception of half a dozen men occupied in the navigation of the submarine boat, which ‘was under the control of a mechanician named Gibson, a very clever and adventurous Englishman. The program of this performance consisted of various evolutions on the surface of the ocean, followed by an immersion of several - hours’ duration, after which the apparatus had orders to reappear when it reached a buoy several miles out to sea. The moment having come, and the upper hatchway being closed, the boat manceuvred at first on the sea, and its speed and steering obtained the well-merited admira- tion of all the spectators. Then at asignal from the £déa the machine sank slowly, ‘and disappeared from sight. A few of the ships made for the spot at which its reappearance was to take place. Three hours passed—the boat had not yet risen to the surface. But none could have guessed that by a concerted plan between Count d’Artigas and the engineer, this sub- marine vessel, in reality the schooner’s secret tug, was to emerge several miles beyond that point. With the exception of those in the secret, there was no doubt in any mind that it had been destroyed by an accident either to its hull or to its machines. On board the Edda consternation was well acted; on board the other ships it was ‘more real.