“It has not yet failed us,” answered the engineer, with a smile.

“What would happen if it broke or stopped working?” asked Joe.

“The well would fill to the brim and overflow in a minute or two.”

“So that,” rejoined the diver, “if it caught me in the middle o’ dressin’, me and my mate would be drownded.”

“You’d stand a good chance of coming to that end,” replied the engineer, with a laugh. “Your mate might get out in time, but as you say the dress would prevent you getting back through the hole, there would be no hope for you.”

“Well then, we’ll begin,” said Baldwin; “come, Rooney, get the gear in order.” So saying, the adventurous man went to work with his wonted energy. The air-pumps were set up, and two men of the works instructed in the use of them. Then Baldwin squeezed himself with difficulty through the manhole, and the dress was passed down to him. Rooney then squeezed himself through, and both went a few steps down the iron ladder until they stood on the cross-beams behind and underneath it. The position was exceedingly awkward, for the ladder obliged them to stoop, and they did not dare to move their feet except with caution, for fear of slipping off the beams into the water—in which, even as it was, they were ankle-deep while standing on the beams. They were soon soaked to the skin by the drippings and spirtings from the pipes, and almost incapable of hearing each other speak, owing to the din. If Rooney had dropped the lead-soled boots or the shoulder-weights, they would have sunk at once beyond recovery, and have rendered the descent of the diver very difficult if not impossible.

Realising all this, the two comrades proceeded with great care and slowness. Dressing a diver in the most favourable circumstances involves a considerable amount of physical exertion and violence of action. It may therefore be well believed that in the case of which we write, a long time elapsed before Baldwin got the length of putting on his helmet. At last it was screwed on. Then a hammer and a bagful of wooden pins were placed in his hands.

“Now, Joe, are ye aisy?” asked Rooney, holding the front-glass in his hand, preparatory to sealing his friend up.

“All right,” answered Baldwin.

“Set a-goin’ the air-pumps up there,” shouted Rooney, from whose face the perspiration flowed freely, as much from anxiety about his friend as from prolonged exertion in a constrained attitude.