Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 60
Coral Island. called polyps, who labor together in building up greatwalls and masses of coral. They never carry on their work above the surfaceof the water, for in the air they would die. Butthe waves breakthe coral, andheap it up abovehigh-water mark,and carry earthand seeds to dropthere till at… … Young Coral Polyp attached to a Rockand expanded. 36 Wonders of Earth, Sea, and Sky Soft chalk isever, found shells of rhizopods. The material used by the polypsin building the coral is chiefly lime, which they havethe power of gathering out of the water, and the finecoral-powder, sinking to the…
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