. A naturalist's wanderings in the Eastern archipelago; a narrative of travel and exploration from 1878 to 1883. he travellerin midst of his amazement on first reaching that peculiarproduction of the warm seas—an island-speckled ring of coralholding its own against the waves—are, How came it into beinghere, Why of this singular form, and How does it continue toexist ? Mr. Darwin was the first to attempt any far-reachingsolution of these difficult questions, applicable to coral forma-tions over all the world. As true reef-building corals, it is wellknown, can flourish only beneath a very limite
. A naturalist's wanderings in the Eastern archipelago; a narrative of travel and exploration from 1878 to 1883. he travellerin midst of his amazement on first reaching that peculiarproduction of the warm seas—an island-speckled ring of coralholding its own against the waves—are, How came it into beinghere, Why of this singular form, and How does it continue toexist ? Mr. Darwin was the first to attempt any far-reachingsolution of these difficult questions, applicable to coral forma-tions over all the world. As true reef-building corals, it is wellknown, can flourish only beneath a very limited depth—sometwenty fathoms—of water, a great apparent difficulty existed respecting the foundations on which these atolls are based,from the immensity of the spaces over which they are inter-spersed and the apparent necessity for believing that they areall supported on mountain summits, which, although rising very^par to the surface of the sea, in no one instance emerge above escape this latter most improbable admission, which impliesthe existence of submarine chains of mountains of almost the. Map of the IOCOS ttRUKFJiINC exhibiting the cutuigesthat haw taken ulace since 1836. mtlinr and rmarb printed in black, is arrduriion of Q-e Admiralty chart published m J86CInr changes that, have oaaurred,,aaditbiaaUd h,AT Forbes, 1879, trrr jnarked, inJted-At-ea of poisoned, water. Jan? 187& .E33 Soundings in fathoms. t/wse marked, (has jib uuhjoatcthat tut hottom was found, cut, those depths. i H«rper kSrotiers JfewYort gg A XATf/;A LISTS WANDERINGS saimmilt ? height, extending over areas of many thousand squares there is but one alternative; namely, the prolonged subsi-denct of the foundations on which the atolls were primarily based,together with the upward growth of the reef-constructing corals. *Since Mr. Darwin published this theory, several expeditionsexpressly directed towards the examination of the floor of thegreat oceans have taken place, prominent among them b
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectnaturalhistory, booky
