several conversations on this subject with an old schoolmaster of the district, and it was from him that I learned the use of the words 'cylinder' and 'sphere.' He explained to me--although I have forgotten the explanation--how what I observed was in fact the natural consequence of the forms of the floating fragments, and showed me how it happened that a cylinder swimming in a vortex offered more resistance to its suction, and was drawn in with greater difficulty than an equally bulky body of any form whatever. "There was one startling circumstance which went a great way in enforcing these observations and rendering me anxious to turn them to account, and this was that at every revolution we passed something like a barrel, or else the yard or the mast of a vessel, while many of these things which had been on our level when I first opened my eyes upon the wonders of the whirlpool were now high up above us, and seemed to have moved but little from their original station. "I no longer hesitated what to do. I resolved to lash myself securely to the water-cask upon which I now held, to cut it loose from the counter, and to throw myself with it into the water. I attracted my brother's attention by signs, pointed to the floating barrels that came near us, and did everything in my power to make him understand what I was about to do. I thought at length that he comprehended my design, but, whether this was the case or not, he shook his head despairingly, and refused to move from his station by the ring-bolt. It was impossible to reach him, the emergency admitted of no delay, and so, with a bitter struggle, I resigned him to his fate, fastened myself to the cask by means of the lashings which secured it to the counter, and precipitated myself with it into the sea without another moment's hesitation.