Geological Magazine, Volume 7Henry Woodward Cambridge University Press, 1870 |
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appear beds bones Boulder-clay boulders Brachiopoda breccia British Carboniferous Limestone Chalk character Chillesford clay coal coast containing Crag Cretaceous denudation deposits described Devonian district dorsal drift elevation England Eocene evidence fauna feet formation fossils fragments Gala Group genus Geol GEOLOGICAL MAGAZINE Geological Society Geological Survey geologists Glacial glacier gneiss granite gravel Greensand Grit hills hydrothecæ inches Ireland Islands Jones land lava lodes Lower marine mass miles Millstone Grit mineral Miocene mountains Museum nearly Neocomian observed occur Old Red Old Red Sandstone Oolite paper pebbles period pinel plates Pliocene portion present probably Prof Professor referred remains remarkable ridge river rocks Rovasenda sand seen Sequenza shales shells side Silurian Skiddaw slates slope species specimens stone strata surface Terebratula Tertiary thickness Upper valley valve volcanic Wasdale
Brani popolari
Pagina 46 - God, That God, which ever lives and loves, One God, one law, one element, And one far-off divine event, To which the whole creation moves.
Pagina 546 - H, 1880. IT is not my intention in this paper to enter into a minute account of the construction and comparison of the various standards of length which have been made the basis of measurements, either in trigonometrical surveys of the earth's surface, or in more strictly physical investigations. Many of these possess a certain historical interest, even when they have...
Pagina 9 - It consists essentially of a cartilaginous cushion, supporting, as on a pulley, an elastic strap, which bears a long series of transversely disposed teeth. The ends of the strap are connected with muscles attached to the upper and lower surface of the hinder extremities of the cartilaginous cushions ; and these muscles, by their alternate contractions, cause the toothed strap to work backwards and forwards over the end of the pulley formed by its anterior end. The strap consequently acts...
Pagina 212 - On the top of another isolated hill, called Morven, about 3,000 feet high, and situated a few miles to the north of the village of Ballater, in the county of Aberdeen, I found granite boulders unlike the rock of the hill, and apparently derived from the mountains to the west.
Pagina 290 - "Gneissoid series in Nova Scotia and new Brunswick, supposed to be the equivalents of the Huronian (Cambrian) and Laurentian.
Pagina 101 - ... vitrified aspect of the felspar crystals of many trachytes ; the broken and dislocated appearance of the leucites, felspars, and other crystals in many basalts ; the frequent arrangement of the longest axes of such crystals in the direction of the rock, that is, of the movement of the lava when liquid ; the finer grain often exhibited towards the tail or extremity of a current than at its source, as if the crystals had been broken up by friction as the matter moved on ; the brecciated lavas which...
Pagina 580 - Sandstone type in the overlying slates he regarded as furnishing no argument to invalidate this conclusion. The sandstones of Parry Island and Melville Island are also regarded by the author as belonging to the " Ursa-stage," which, by these additions, presents us with a flora of seventy-seven species of plants. The author remarked upon the singularity of plants of the same species having lived in regions so widely separated as to give them a range of 26^° of latitude, and indicated the relations...
Pagina 253 - ... that those bones were laid there. The branches of the fern in every layer as we opened them were very distinguishable, as were the seeds of the rushes and the tops of boughs. The whole matter smelt very sour as it was dug ; and, tracing it, I found it 34 feet long and about 20 to 22 feet broad.
Pagina 189 - The specimen was silicified, and the author stated that even the starch grains contained in its cells, and the mycelium of a parasitic fungus traversing some of them were perfectly represented. Its precise origin was unknown ; it was .said to be probably derived from the London Clay, or from the beds immediately below.
Pagina 302 - His home was full of maps, sections, models and collections of fossils ; and his hourly talk was of the laws of stratification, the succession of organic life, the practical value of geology ; its importance in agriculture, engineering and commerce ; its connection with physical geography, the occupations of different people, and the distribution of different races. In this happy dream of the future expansion of geology, his actual professional work was...