 Coral is never, therefore, the handiwork of the manyarmed polyps; for it is no more a result of labor than bone-making in ourselves. And again, it is not a collection of cells into which the coral animals may withdraw for concealment any more than the...  Corals and Coral Islands - Page 18by James Dwight Dana - 1872 - 398 pagesFull view - About this book
 | Daniel Coit Gilman - Science - 1899 - 450 pages
...Throughout geological time they were the agents appointed to produce the material of limestones, and alscTTo make even the flint and many of the siliceous deposits...a dog is its house or cell; for every part of the coral—or corallum, as it is now called in science—of a polyp, in most reefmaking species, is enclosed... | |
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