. Coral and atolls: a history and description of the Keeling-Cocos Islands, with an account of their fauna and flora, and a discussion of the method of development and transformation of coral structures in general. Coral reefs and islands. Young For lies Mass grown EQUALLY ROUND A CENTRAL Older Porites Colony in which THE Lower Zooids are killed BY Pressure. shape would be the type of form of all the massive species which follow this method of growth and division, but practically the dome shape is far less common than the flat-topped rock, and this is for the reason that injury to th
. Coral and atolls: a history and description of the Keeling-Cocos Islands, with an account of their fauna and flora, and a discussion of the method of development and transformation of coral structures in general. Coral reefs and islands. Young For lies Mass grown EQUALLY ROUND A CENTRAL Older Porites Colony in which THE Lower Zooids are killed BY Pressure. shape would be the type of form of all the massive species which follow this method of growth and division, but practically the dome shape is far less common than the flat-topped rock, and this is for the reason that injury to the uppermost zooids is usual in the life-history of a colony. When the dome has become of some size, its upper surface becomes large enough and flat enough to form a resting-place for sediment, and the uppermost zooids decline in activity, the compensating growth carries the sides farther out, and the colony tends, by the increase of the rest of the surface, to become still more flattened at the top. Injury caused by loosened fragments sweeping over the surface of the rocks, and the further deposition of sediment, finally cause the wholesale death of the zooids of the flattened tops. The zooids round the margins now form, by their active growth,. 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 Jones, F. Wood (Frederic Wood), 1879-1954. London, Lovell Reeve & Co. , Ltd.
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Keywords: ., bookauthorjonesfwo, bookcentury1900, bookdecade1910, bookyear1912
