The first was, that, as a general rule, the larger the bodies were, the more rapid their descent - the second, that, between two masses of equal extent, the one spherical, and the other of any other shape , the superiority in speed of descent was with the sphere - the third, that, between two masses of equal size, the one cylindrical, and the other of any other shape, the cylinder was absorbed the more slowly. Since my escape, I have had several conversations on this subject with an old school-master 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.
