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Ammonites appear augite basalt beds boulders British Carboniferous Limestone Chalk Chalky Boulder-clay character clay Coal-measures coast containing Cretaceous crystalline deposits described Devonian district drift England Eocene Estheria Europe evidence fact fauna feet foliation formation fossils fragments genera genus Geol Geological Magazine Geological Society Geological Survey geologists glacier gneiss granite gravel Hill ice-sheet igneous Ireland islands Journ Lake later Lias Lower marine marl mass Memoir miles Millstone Grit mineral Miocene moraines Museum North northern occur olivine Oolite origin Palaeozoic paper pinnules plates Pleistocene portion posterior present probably Professor quartzite referred regard region remarkable represented ridges river rocks sand sandstones Scandinavia schists seen serpentine shales shells side Silurian slope southern species specimens stones strata structure submergence surface Tertiary thickness traces Triassic Upper valleys valve vertebra volcanic Yoredale zone
Seite 458 - On the banks of the Nile, many hundreds of feet above its present level, implements of the European types have been discovered, while in Somaliland, in an ancient river valley at a great elevation above the sea, Mr. Seton-Karr has collected a large number of implements formed of flint and quartzite which, judging from their form and character, might have been dug out of the drift deposits of the Somme or the Seine, the Thames or the ancient Solent.
Seite 567 - President as probably derived from the 1 larlech grits, in which he had observed somewhat similar features. — Mr. Bauerman, as one of the three delegates appointed by the Council on behalf of the Society to attend the recent International Geological Congress, held at St. Petersburg, gave a short account of the work of the Congress, dwelling more particularly on the excursion to the Ural Mountains, in which he had taken part. — The following communication was read : A contribution to the palaeontology...
Seite 76 - Canst thou lift up thy voice to the clouds, That abundance of waters may cover thee? Canst thou send lightnings, that they may go, And say unto thee, Here we are?
Seite 384 - Students preparing for First-class Certificates. By CALEB PAMELY, Mining Engineer and Surveyor ; Member of the North of England Institute of Mining and Mechanical Engineers ; and Member of the South Wales Institute of Mining Engineers. With 700 Plans, Diagrams, and other Illustrations.
Seite 271 - But it is by no means so ; and, out of several others, we select another instance. On p. 216 Dr. Sclater, in treating of seals, writes that " In former ages there must have been some barrier in the Atlantic which did not exist in the Pacific to stop their progress northwards. The only barrier one can imagine that would have effected this must have been a land uniting South America and Africa across which they could not travel.
Seite 79 - Parties in the field. explorations, covering in a general way large tracts of country, and (2) the systematic mapping and description in detail of less extensive areas. The first inevitably precedes the second class of work, and for many years it must, in the nature of things, remain the only method possible of dealing with the vast regions of Canada which lie beyond the boundaries of connected settlement.
Seite 441 - Soon after, doubts which had arisen were removed by the " discovery of a mode of identifying the strata by the organized fossils respectively imbedded therein." And " thus stored with ideas," as he expresses himself, he began to communicate them to his friends. In all this, we see great vividness of thought and activity of mind, unfolding itself exactly in proportion to the facts with which it had to deal. We are reminded of that cyclopean architecture in...
Seite 329 - The primary origin of the micropegmatite he believes to be proved by : — (1) The crystallographic continuity of its felspar with that of the normal plagioclase of the rock ; (2) the mode of occurrence of the micropegmatite, filling in the angles and spaces between the augite and the plagioclase ; and (3) its variation in coarseness of grain agreeing with that of the remaining two constituents of the rock.
Seite 458 - Then, and possibly not till then, may a series of migrations to ' ' fresh woods and pastures new" not unnaturally have ensued, and these following the usual course of ' ' westward towards the setting sun ' ' might eventually lead to a palaeolithic population finding its way to the extreme borders of western Europe, where we find such numerous traces of its presence.
Seite 554 - What is the state of the river, in yonder beautiful valley, after heavy rain?" "Why, very muddy." "When there's a very heavy gale, throwing violent waves on this cliff, does the cliff ever give way?" "Oh, yes — there's always, some part or other of it wasting." "Very well. Now, the mud which the river brings down from the country, as well as that which the waves tear from the cliffs, finds its way to the sea, as you know; and, sooner or later, it settles on the bottom of the sea, and buries up...