It was some little while before midday that we grew conscious that the sea had become very much less violent; and this despite the wind roaring with scarce abated noise. And, presently, everything about the boat, saving the wind, having grown indubitably calmer, and no great water breaking over the canvas, the bo'sun beckoned me again to assist him lift the after part of the cover. This we did, and put forth our heads to inquire the reason of the unexpected quietness of the sea; not knowing but that we had come suddenly under the lee of some unknown land. Yet, for a space, we could see nothing, beyond the surrounding billows; for the sea was still very furious, though no matter to cause us concern, after that through which we had come. Presently, however, the bo'sun, raising himself, saw something, and, bending cried in my ear that there was a low bank which broke the force of the sea; but he was full of wonder to know how that we had passed it without shipwreck. And whilst he was still pondering the matter I raised myself, and took a look on all sides of us, and so I discovered that there lay another great bank upon our larboard side, and this I pointed out to him. Immediately afterwards, we came upon a great mass of seaweed swung up on the crest of a sea, and, presently, another. And so we drifted on, and the seas grew less with astonishing rapidity, so that, in a little, we stripped off the cover so far as the midship thwart; for the rest of the men were sorely in need of the fresh air, after so long a time below the canvas covering. It was after we had eaten, that one of them made out that there was another low bank astern upon which we were drifting. At that, the bo'sun stood up and made an examination of it, being much exercised in his mind to know how we might come clear of it with safety. Presently, however, we had come so near to it that we discovered it to be composed of seaweed, and so we let the boat drive upon it, making no doubt but that the other banks, which we had seen, were of a similar nature. In a little, we had driven in among the weed; yet, though our speed was greatly slowed, we made some progress, and so in time came out upon the other side, and now we found the sea to be near quiet, so that we hauled in our sea anchor--which had collected a great mass of weed about it--and removed the whaleback and canvas coverings, after which we stepped the mast, and set a tiny storm-foresail upon the boat; for we wished to have her under control, and could set no more than this, because of the violence of the breeze.