. The polar and tropical worlds [microform] : a description of man and nature in the polar and equatorial regions of the globe : two volumes in one : embracing also an account of the expeditions of all the Arctic explorers from the discovery of Iceland, over one thousand years ago, to Hall's last expedition in the northern world, together with the wonderful discoveries and adventures of Agassiz, Livingstone, Wallace, and other distinguished travelers in the tropical countries. Arctic races; Tropics; Natural history; Races arctiques; Régions tropicales; Sciences naturelles; genealogy. UJI,. TR
. The polar and tropical worlds [microform] : a description of man and nature in the polar and equatorial regions of the globe : two volumes in one : embracing also an account of the expeditions of all the Arctic explorers from the discovery of Iceland, over one thousand years ago, to Hall's last expedition in the northern world, together with the wonderful discoveries and adventures of Agassiz, Livingstone, Wallace, and other distinguished travelers in the tropical countries. Arctic races; Tropics; Natural history; Races arctiques; Régions tropicales; Sciences naturelles; genealogy. UJI,. TROPICAL ISLANDS. 47!» passis it like a great moat is tliirty fiitlioniH dwjt, and is shut out from tlio ocean by a (â liiiiid at a distance of from lialf a mile to three miles. Hut, tlicH! are coral reefs of far greater magnitude. Tiio grandest is that extending aidi:;,' the north-east coast of Australia. Rising frotn an unfathomed ocean, it extends fur a thousiind miles along the coast, with a hn^adlh of from two hundri'd yards to a mile, and at an average distance of twenty or thirty mile?', though sometimes douhle lliat s|i!icc. This long, narrow lagoon is never less tlian te.' fathoms deep, and often MX liiiiis as much, so that the '⢠Ureat Kastern," the hugest vessel that over floated, if it (iii('(! passed tlirough one of the ojieoings in the reef, niiglit :ail as tliough in a tran- (luil liarlior for a thousand niiles in sight of land on either side, without its keel for an instant reaching halfway to the bottom. Tiie direct influence of the ocetin tipon the islands of the Tropical World is great in every respect. It giv»!S an almost tempi^rate climate to low lands lying under the i'i|iiat(ir, and thus modifies tiieir faima iuid flortt, in accordance with known laws of nature. Hut tlie occiin and air in their currents also determini! the vegefahle, animal, and human life of tlie islands of the Tropical World in an accidental manner. Time was wlien
Size: 1195px × 2091px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, books, booksubjectnaturalhistory
