Eight times successively the bird let its prey go, then dived after it, and although in deep water, brought it each time to the surface. When thus opposed he continually rolled his head from side to side, in a very odd manner, as if the power of distinct vision lay only in the anterior and basal part of each eye. When crawling, it may be said on four legs, through the tussocks or on the side of a grassy cliff, it moves so very quickly that it might easily be mistaken for a quadruped. They do not migrate, but build on the small outlying islets. They live entirely on vegetable matter. Their wings are too small and weak to allow of flight, but by their aid, partly swimming and partly flapping the surface of the water, they move very quickly. These clumsy, loggerheaded ducks make such a noise and splashing, that the effect is exceedingly curious. The steamer is able to dive only to a very short distance. When in the evening pluming themselves in a flock, they make the same odd mixture of sounds which bullfrogs do within the tropics. I will mention only one class of facts, relating to certain zoophytes in the more highly organized division of that class. The head itself possessed considerable powers of movement, by means of a short neck. In the greater number of species, each cell was provided with one head, but in others each cell had two. When one of the vulturelike heads was cut off from the cell, the lower mandible retained its power of opening and closing. Perhaps the most singular part of their structure is, that when there were more than two rows of cells on a branch, the central cells were furnished with these appendages, of only onefourth the size of the outside ones. When touched with a needle, the beak generally seized the point so firmly, that the whole branch might be shaken. Each of these bristles and each of the vulturelike heads generally moved quite independently of the others, but sometimes all on both sides of a branch, sometimes only those on one side, moved together coinstantaneously, sometimes each moved in regular order one after another. In these actions we apparently behold as perfect a transmission of will in the zoophyte, though composed of thousands of distinct polypi, as in any single animal. But the remarkable circumstance was, that the flashes of light always proceeded up the branches, from the base towards the extremities. The examination of these compound animals was always very interesting to me.