. 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. Porcupine (Ship); Lightning (Ship); Ocean; Marine animals; Deep-sea temperature; Marine sediments. CHAP. X.] CONTINUITY OF THE CHALK. 485 of ' spicules of the sarcode,' one large, C-sliaped, the other much more minute, ansAvering to Bowerbank's ' tridentate equianchorate' type; every now and then -MMJkSLM-. Fig. 82 âVentriculites simplex, T
. 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. Porcupine (Ship); Lightning (Ship); Ocean; Marine animals; Deep-sea temperature; Marine sediments. CHAP. X.] CONTINUITY OF THE CHALK. 485 of ' spicules of the sarcode,' one large, C-sliaped, the other much more minute, ansAvering to Bowerbank's ' tridentate equianchorate' type; every now and then -MMJkSLM-. Fig. 82 âVentriculites simplex, Toulmin Smith. Section of tlje. miter wall, sIio\\iiig the structure of the silicious network, (x. â 'iO.) the rind thus formed coming to the margin of a small pore. The interior of the sphere is filled with soft semi-fluid sarcode, supported by the loosest possible. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, C. Wyville (Charles Wyville), Sir, 1830-1882; Carpenter, William Benjamin, 1813-1885; Jeffreys, John Gwyn, 1809-1885. London, Macmillan and co.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmar, booksubjectocean
