head down, and wipe it off with your night-cap. Now, then, down you go once more.”

This time the pat on the head was followed by a descending motion. The mailed figure was feeling with its right foot for the next round of the ladder. Then slowly—very slowly—the left foot was let down, while the two hands held on with a tenacity that caused all the muscles and sinews to stand out rigidly. Then one hand was loosened, and caught nervously at a lower round—then the other hand followed, and thus by degrees the pupil went under the surface, when his helmet appeared like a large round ball of light enveloped in the milky-way of air-bubbles that rose from it.

“You’d better give the signal to ask if all’s right,” said Edgar, who felt a little anxious.

“Do so,” said Baldwin, nodding to the assistant.

The man obeyed, but no answering signal was returned.

According to rule they should instantly have hauled the diver up, but Baldwin bade them delay a moment.

“I’m quite sure there’s nothing wrong,” he said, stooping over the side of the barge, and gazing into the water, “it’s only another touch of nervousness.—Ah! I see him, holdin’ on like a barnacle to the ladder, afraid to let go. He’ll soon tire of kickin’ there—that’s it: there he goes down the rope like the best of us.”

In another moment the life-line and air-pipe ceased to run out, and then the assistant gave one pull on the line. Immediately there came back one pull—all right.

“That’s all right,” repeated Baldwin; “now the ice is fairly broken, and we’ll soon see how he’s going to get on.”

In order that we too may see that more comfortably, you and I, reader, will again go under water and watch him. We will also listen to him, for Rooney has a convenient habit of talking to himself, and neither water nor helmet can prevent us from overhearing.

True to his instructions, the pupil proceeded to fasten his clew-line to the stone at the foot of the ladder-rope, and attempted to kneel.

“Well, well,” he said, “did ye iver! What would me mother say if she heard I couldn’t git on my knees whin I tried to?”

Rooney began this remark aloud, but the sound of his own voice was so horribly loud and unnaturally near that he finished off in a whisper, and continued his observations in that confidential tone.

“Och! Is it dancin’ yer goin’ to do, Rooney?—in the day-time too!” he whispered, as his feet slowly left the bottom. “Howld on, man!”

He made a futile effort to stoop and grasp the mud, then, bethinking himself of Baldwin’s instructions, he remembered that too much air had a tendency to bring him to the surface, and that opening the front-valve was the remedy. He was not much too soon in recollecting this, for, besides rising, he was beginning to feel a singing in his head and a disagreeable pressure on the ears, caused by the ever-increasing density of the air. The moment the valve was fully opened, a rush out of air occurred which immediately sank him again, and he had now no difficulty in getting on his knees.

“There’s little enough light down here, anyhow,” he muttered, as he fumbled about the stone sinker in a vain attempt to fasten his line to it, “sure the windy must be dirty.”

The thought reminded him of Baldwin’s teaching. He bent forward his head and wiped the glass with his night-cap, but without much advantage, for the dimness was caused by the muddiness of the water.

Just then he began to experience uncomfortable sensations; he felt a tendency to gasp for air, and became very hot, while his garments clasped his limbs very tightly. He had, like Maxwell, forgotten to reclose the breast-valve, but, unlike the more experienced diver, he had failed to discover his omission. He became flurried and anxious, and getting, more and more confused, fumbled nervously at his helmet to ascertain that all was right there. In so doing he opened the little regulating cock, which served to form an additional outlet to foul air. This of course made matters worse. The pressure of air in the dress was barely sufficient to prevent the water from entering by the breast-valve and regulating cock. Perspiration burst out on his forehead. He naturally raised his hand to wipe it away, but was prevented by the helmet.

Rooney possessed an active mind. His thoughts flew fast. This check induced the following ideas—

“What if I shud want to scratch me head or blow me nose? Or what if an earwig shud chance to have got inside this iron pot, and take a fancy to go into my ear?”

His right ear became itchy at the bare idea. He made a desperate blow at it, and skinned his knuckles, while a hitherto unconceived intensity of desire to scratch his head and blow his nose took violent possession of him.

Just then a dead cat, that had been flung into the harbour the night before, and had not been immersed long enough to rise to the surface, floated past with the tide, and its sightless eyeballs and ghastly row of teeth glared and glistened on him, as it surged against his front-glass. A slight spirt of water came through the regulating cock at the same instant, as if the dead cat had spit in his face.

“Hooroo! Haul up!” shouted Rooney, following the order with a yell that sounded like the concentrated voice of infuriated Ireland. At the same time he seized the life-line and air-tube, and tugged at both, not four times, but nigh forty times four, and never ceased to tug until he found himself gasping on the deck of the barge with his helmet off and his comrades laughing round him.

“It’s not a bad beginning,” said Baldwin, as he assisted his pupil to unrobe; “you’ll make a good diver in course o’ time.”

Baldwin was right in this prophecy, for in a few months Rooney Machowl became one of the best and coolest divers on his staff.

We need not try the reader’s patience with an account of Edgar’s descent, which immediately followed that of the Irishman. Let it suffice to say that he too accomplished, with credit and with less demonstration, his first descent to the bottom of the sea.