Archive image from page 469 of The depths of the sea;. The depths of the sea; an account of the general results of the dredging cruises of SS. 'Porcupine' and 'Lightning' during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, J. Gwyn Jeffreys, and Dr. Wyville Thomson depthsofseaaccou02thom Year: 1874 414 THE DEPTHS OF THE SEA. [chap. ix. bodies seem to have been taken in to the 3Ir/.vo- braohia as food, the hard parts accumulating in cavities in the animal's body after all the available nourishment had been absorbed. It is undoubted that a large nuQib
Archive image from page 469 of The depths of the sea;. The depths of the sea; an account of the general results of the dredging cruises of SS. 'Porcupine' and 'Lightning' during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, J. Gwyn Jeffreys, and Dr. Wyville Thomson depthsofseaaccou02thom Year: 1874 414 THE DEPTHS OF THE SEA. [chap. ix. bodies seem to have been taken in to the 3Ir/.vo- braohia as food, the hard parts accumulating in cavities in the animal's body after all the available nourishment had been absorbed. It is undoubted that a large nuQiber of the organisms whose skele- tons are mixed with the ooze of the bottom of the sea live on the surface, the delicate silicious or cal- careous shields or spines falling gradually through Fig. 04.—'Coccosphere.' (x. 1000.) the water and finally reaching the bottom, what- ever be the depth. I think that now the balance of opinion is in favour of the view that the coccoliths are joints of a minute unicellular alga living on the sea-surface and sinking down and mixing with the sarcode of Bathyhius, very probably taken into it with a purpose, for the sake of the vegetable matter they may contain, and which may afford food for the animal jelly. What the coccospheres are, and
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