. Boston journal of natural history. Natural history. in the Pacific, ^c. 101 It is another argument against the probabiUty of the reef passages being produced by the tides, that they are generally deepest toward the outer margin of the reef, where the cur- rent is weakest, and shoal gradually as we approach the lagoon, near whose entrance it is most rapid. Moreover, no accumulation of water would be likely to force a passage either into or from the lagoon, through the reef, against wind and sea, or even aided by them, when it could without diffi- culty flow over it on the leeward side, till t
. Boston journal of natural history. Natural history. in the Pacific, ^c. 101 It is another argument against the probabiUty of the reef passages being produced by the tides, that they are generally deepest toward the outer margin of the reef, where the cur- rent is weakest, and shoal gradually as we approach the lagoon, near whose entrance it is most rapid. Moreover, no accumulation of water would be likely to force a passage either into or from the lagoon, through the reef, against wind and sea, or even aided by them, when it could without diffi- culty flow over it on the leeward side, till the waters of the lagoon were on a level with those of the ocean. Much less should we expect it to scoop out several channels, and that too on both sides of the reef, as we see them in some Paumo- tus. At Ocean Island, whose lagoon of twenty four miles in circuit, has no less than four entrances, situated as shown in the accompanying sketch ; seven-eighths of the reef are, even at low water, overflowed to the depth of two feet or more. SKETCH OF OCEAN ISLAND AND REEF.* ..:^- â¢â¢*;*.s^.. """% "%.A^ i â¢â a i t .' ,-1. 1 Ilih 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 Boston Society of Natural History. [Boston, Boston Society of Natural History]
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