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" ... made by worms. But however efficient these boring animals may be in preparing the coral stems for decay, there is yet another agent, perhaps still more destructive. We allude to the minute boring-sponges, which penetrate them in all directions, until... "
House Documents, Otherwise Publ. as Executive Documents: 13th Congress, 2d ... - Página 152
por United States. Congress. House
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Report of the Superintendent ... Showing the Progress of the Work

U.S. Coast and Geodetic Survey - 1852
...holes of the date-fish — some large enough to admit a finger — besides hundreds of small holes made by worms. But however efficient these boring...Ship Channel. The broad channel extending the whole range of the reef, between the main keys and the outer reef, is rather uniform, having the same width...
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Senate Documents, Otherwise Publ. as Public Documents and ..., Volume 5

United States. Congress. Senate - 1852
...holes of the date-fish — some large enough to admit a finger — besides hundreds of small holes made by worms. But however efficient these boring...they appear at last completely rotten throughout. * * » » * * • Skip Channel. The broad channel extending the whole range of the reef, between the...
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Corals and Coral Islands

James Dwight Dana - 1872 - 398 páginas
...fifty holes of the date-fish — some large enough to admit a finger — besides hundreds of small ones made by worms. But however efficient these boring...directions, until they appear at last completely rotten through." On the other hand Serpulas and certain kinds of barnacles (of the genus Creusja, etc.) penetrate...
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The Parallel Roads of Glenroy: Their Origin and Relation to the Glacial ...

James Macfadzean - 1883 - 149 páginas
...fifty holes of the date-fish — some large enough to admit a finger— besides hundreds of small ones made by worms. But however efficient these boring...directions, until they appear at last completely rotten through." [Oana.] Here we have examples of the existing checks to the growth of coral reefs ; and a...
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Toilers in the Sea

Mordecai Cubitt Cooke - 1889 - 373 páginas
...fifty holes of the date-fish—some large enough to admit a finger —beside hundreds of small ones made by worms. But however efficient these boring...directions, until they appear at last completely rotten through." l Yet the coral animals would seem to contribute themselves a little protection from their...
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Corals and Coral Islands

James Dwight Dana - 1890 - 440 páginas
...fifty holes of the date-fish — some large enough to admit a finger — besides hundreds of small ones made by worms. But however efficient these boring animals may be in preparing the coral steins for decay, there is yet another agent, perhaps still more destructive We allude to the minute...
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Corals and coral islands

James D. Dana - 1899
...fifty holes of the date-fish — some large enough to admit a finger — besides hundreds of small ones made by worms. But however efficient these boring animals may be in preparing the coral steins for decay, there is yet another agent, perhaps still more destructive. We allude to the minute...
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