The Subterranean WorldLongmans, Green, and Company, 1871 - 522 páginas |
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Página 9
... amounts to 3,000 , while the Flora of the present day , as far as it has been examined by systematical botanists , numbers at least 250,000 species ; that the host of living insects is probably still more numerous , although not much ...
... amounts to 3,000 , while the Flora of the present day , as far as it has been examined by systematical botanists , numbers at least 250,000 species ; that the host of living insects is probably still more numerous , although not much ...
Página 40
... amount of hydrostatic pressure to which they are subjected , and the more or less porous and permeable nature of the beds through which they percolate . Were the ground we stand on composed of transparent crystal , and the subter ...
... amount of hydrostatic pressure to which they are subjected , and the more or less porous and permeable nature of the beds through which they percolate . Were the ground we stand on composed of transparent crystal , and the subter ...
Página 76
... amount of the material which flowed from Kilauea . This is equivalent to a triangular range 800 feet high , two miles long , and over a mile wide at base ! Though generally symptoms of violent disturbance , such as shakings of the earth ...
... amount of the material which flowed from Kilauea . This is equivalent to a triangular range 800 feet high , two miles long , and over a mile wide at base ! Though generally symptoms of violent disturbance , such as shakings of the earth ...
Página 200
... amount of heat does reach the ice , the latter melts but slowly , for ice absorbs 60 ° C. in melting ; and thus when ice is once formed , it becomes a material guarantee for the permanence of cold in the cave . Another means for ...
... amount of heat does reach the ice , the latter melts but slowly , for ice absorbs 60 ° C. in melting ; and thus when ice is once formed , it becomes a material guarantee for the permanence of cold in the cave . Another means for ...
Página 239
... amount to no less than 120 metres in the centre . BORING MACHINE IN THE SECOND WORKING GALLERY , MONT CENIS TUNNEL . For this purpose a signal was erected on the mountain . above the culminating point or the centre of the tunnel ; and ...
... amount to no less than 120 metres in the centre . BORING MACHINE IN THE SECOND WORKING GALLERY , MONT CENIS TUNNEL . For this purpose a signal was erected on the mountain . above the culminating point or the centre of the tunnel ; and ...
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Términos y frases comunes
Alston Moor amber Ammonites ancient animals Baku beautiful beds bones bottom carats carbonic acid Carboniferous Carniola cave cavern century chiefly coal coal-fields coast colliery colour considerable copper Cornwall crater Crown 8vo deep deposits depth descending diamond discovered discovery distance earth earthquake Edition England enormous entrance eruption excavations extend extinct fathoms feet fire forests fossil frequently furnaces galleries gold grotto Guanaxuato height Herculaneum History hundred Ichthyosaurus inhabitants iron island labour lake land lava less likewise limestone masses metal miles mineral mines mountain MUD VOLCANOES nature neighbourhood Post 8vo produce quantity quarries remarkable rich rise river rock roof ruins scoriæ shaft silver Sir Charles Lyell situated solfataras stalactites stalagmite Stalita stone strata stream subterranean sulphur surface thick thousand tion tons town valley vapours vast vaults vegetation volcano vols walls whole wonderful Woodcuts workmen
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