Having fastened the line, the diver walked in the direction of the rock on which he had to operate, dropping gradually the coils of the guiding-line as he proceeded. His progress was very slow, for water is a dense medium, and man’s form is not well adapted for walking in it—as every bather knows who has attempted to walk when up to his neck in it. He soon found the object of his search, and went down on his knees beside the hole already driven into the rock. Even this process of going on his knees was not so simple as it sounds, for the men above were sending down more air than could escape by the valve behind the helmet, and thus were filling his dress to such an extent that he had a tendency to rise off the ground despite his weights. To counteract this he opened the valve in front, let out the superabundant air, got on his knees, and was soon busy at work inserting the charge-tube into the hole and tamping it well home, taking care that the fine wire with which it communicated with the party in the barge should not be injured.

While thus engaged he was watched, apparently with deep interest, by a small crab, a shrimp, and several little fish of various kinds, all of which we may add, seemed to have various degrees of curiosity. One particular little fish, named a goby, and celebrated for its wide-awake nature and impudence, actually came to the front-glass of the helmet and looked in. But the diver was too busy to pay attention to it. Nothing abashed, the goby went to each of the side-windows, but, receiving no encouragement, it made for a convenient ledge of the rock, where, resting its fore-fins on a barnacle, it turned its head a little on one side and looked on in silence. Finding this rather tedious, after a time it went, with much of the spirit of a London street-boy, and, passing close to the shrimp, tweaked the end of one of its feelers, causing that volatile creature to vanish. It then made a demonstration of attack on the crab, but that crustaceous worthy, sitting up on its hind-legs and expanding both claws with a very “come-on-if-you-dare” aspect, bid it defiance.

Meanwhile the charge was laid, and Maxwell rose to return to the world above. Feeling a certain uncomfortable hotness in the air he breathed, and observing that his legs were remarkably thin, and that his dress was clasped somewhat too lovingly about his person, he became aware of the fact that, having neglected to reclose the front-valve, his supply of air was now insufficient. He therefore shut the valve and began to wend his way back to the ladder. By the time he reached it the air in his dress had swelled him out to aldermanic dimensions, so that he pulled himself up the ladder-rope, hand over hand, with the utmost ease—having previously given four pulls on his life-line to signal “coming up.” A few seconds more and his head was seen to emerge from the surface, like some goggle-eyed monster of the briny deep.

A comrade at once advanced and unscrewed his front-glass, and then, but not till then, did the men at the pumps cease their labours.

“All right,” said Maxwell, stepping over the side and seating himself on his plank.

“Stand by,” said Baldwin.

The two satellites did not require that order, for they were already standing by with a small electrical machine. The wire before mentioned as being connected with the charge of powder, now safely lodged in the hole at the bottom of the sea, was connected with the electrical machine, and a few vigorous turns of its handle were given, while every eye was turned expectantly on the surface of the sea.

That magic spark which now circles round the world, annihilating time and space, was evolved; it flashed down the wire; the ocean could not put it out; the dry powder received it; the massive rock burst into fragments; a decided shock was felt on board the barge, and a turmoil of gas-bubbles and dead or dying fish came to the surface, in the midst of which turmoil the shrimp, the crab, and the goby doubtless came to an untimely end.

Thus was cleared out of the way an obstruction which had from time immemorial been a serious inconvenience to that port; and thus every year serious inconveniences and obstructions that most people know very little about are cleared out of the way by our bold, steady, and daring divers, through the wisdom and the wonderful appliances of our submarine engineers.

“Now then, Rooney, come an’ we’ll dress you,” said Baldwin. “As you’re goin’ to be a professional diver it’s right that you should have the first chance and set a good example to Mister Berrington here, who’s only what we may call an amateur.”