... feet. The ocean is thus the architect, while the coral polyps afford the material for the structure : and when all is ready, it sows the land with seed brought from distant shores, covering it with verdure and flowers. The growth of the reefs and... Corals and Coral Islands - Página 226por James Dwight Dana - 1872 - 398 páginasVista completa - Acerca de este libro
| 1851 - 510 páginas
...completed, and raised as far out of water as the waves can reach — that is, from six to ten feet. The Ocean is thus the architect, while the coral polyps...lands, is the same as here described for the atoll. The reef rock in all cases is mainly a result of accumulations of coral and shell debris. There are reefs... | |
| 1852 - 422 páginas
...completed, and raised as far out of the water as the waves can reach, that is, from six to ten feet. The ocean is thus the architect, while the coral polyps...lands, is the same as here described for the atoll. The reef rock, in all cases, is mainly a result of accumulations of coral and shell debris. There are reefs... | |
| 1852 - 386 páginas
...completed, and raised as far out of the water as the waves can reach, that is, from six to ten feet. The ocean is thus the architect, while the coral polyps...lands, is the same as here described for the atoll. The reef rock, in all cases, is mainly a result of accumulations of coral and shell debris. There are reefs... | |
| James Dwight Dana - 1853 - 152 páginas
...completed, and raised as far out of water as the waves can reach — that is, from six to ten feet. The Ocean is thus the architect, while the coral polyps...lands, is the same as here described for the atoll. The reef rock in all cases is mainly a result of accumulations of coral and shell debris. There are reefs... | |
| Daniel Coit Gilman - 1899 - 476 páginas
...easily supply the details from the facts already presented. The production of debris will necessarily continue to go on : a part will be swept by the waves,...shores, covering it with verdure and flowers. " The existence of harbors about coral-bound lands, and of entrances through reefs, is largely attributable... | |
| James D. Dana - 1899 - 474 páginas
...eighteen feet with a tide of six or seven. The Ocean is thus the architect, while the coral polyps af ford the material for the structure ; and, when all is...accumulations of coral and shell debris. There are reefs where the corals retain the position of growth, as has been described on a former page. But with these... | |
| Daniel Coit Gilman - 1899 - 450 páginas
...material, the islets are completed, and raised as far out of the water as the waves can reach—that is, about ten feet with a tide of three feet; and...shores, covering it with verdure and flowers. " The existence of harbors about coral-bound lands, and of entrances through reefs, is largely attributable... | |
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