Travels in North America in the Years 1841-2: With Geological Observations on the United States, Canada and Nova Scotia, Volumes 1-2Wiley and Putnam, 1845 |
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Pagina vii
... Examination Statute of 1800. - Its subsequent Modi- fication and Results . - Rise of Private Tutors at Oxford and Cambridge .-- Consequences of this Innovation . - Struggle at Oxford in 1839 to restore the Professional System . - Causes ...
... Examination Statute of 1800. - Its subsequent Modi- fication and Results . - Rise of Private Tutors at Oxford and Cambridge .-- Consequences of this Innovation . - Struggle at Oxford in 1839 to restore the Professional System . - Causes ...
Pagina 3
... examine these before returning to England , as they appeared , by the description given us , to afford the finest examples yet known in the world of petrified trees occurring in their natural or erect position . Letters , which we had ...
... examine these before returning to England , as they appeared , by the description given us , to afford the finest examples yet known in the world of petrified trees occurring in their natural or erect position . Letters , which we had ...
Pagina 5
... examined the rocks of hornblende and syenite , trav- ersed by veins of greenstone and basalt which often intersect each other . The surface of the rocks , wher- ever the incumbent gravel or drift has been recently removed , is polished ...
... examined the rocks of hornblende and syenite , trav- ersed by veins of greenstone and basalt which often intersect each other . The surface of the rocks , wher- ever the incumbent gravel or drift has been recently removed , is polished ...
Pagina 10
... examined the red sand- stone ( New Red ) and intrusive volcanic rocks ( basalt and greenstone ) of this neighbourhood . Dykes of various sizes intersect the stratified rocks , and occasion- ally flow in great tabular masses nearly ...
... examined the red sand- stone ( New Red ) and intrusive volcanic rocks ( basalt and greenstone ) of this neighbourhood . Dykes of various sizes intersect the stratified rocks , and occasion- ally flow in great tabular masses nearly ...
Pagina 12
... examined quarries of the New Red Sandstone , and saw the surfaces of the strata ripple - marked , and with impressions of rain- drops . They also exhibit casts on their under sides of cracks , which have been formed by the shrinking of ...
... examined quarries of the New Red Sandstone , and saw the surfaces of the strata ripple - marked , and with impressions of rain- drops . They also exhibit casts on their under sides of cracks , which have been formed by the shrinking of ...
Overige edities - Alles bekijken
Travels in North America in the Years 1841-2: With Geological ..., Volumes 1-2 Sir Charles Lyell Volledige weergave - 1845 |
Travels in North America in the Years 1841-2: With Geological ..., Volumes 1-2 Sir Charles Lyell Volledige weergave - 1845 |
Travels in North America: With Geological Observations on the ..., Volume 2 Charles Lyell Geen voorbeeld beschikbaar - 2016 |
Veelvoorkomende woorden en zinsdelen
Alleghany Alleghany mountains alluded American ancient anthracite Appalachian appears Atlantic banks Bay of Fundy beds Boston British called Cape Breton carboniferous CHAP clay cliffs coal coal-field coal-measures coloured corals cretaceous denudation deposits Devonian district drift England Eocene Europe European examined Falls feet thick ferns forest fossil fossiliferous Frostburg furrows geological geologists gneiss granite gypsiferous gypsum height hypogene inches Indian Island Joggins Lake Erie Lake Ontario land lectures Lepidodendron limestone marine marl mass mastodon ment miles Minudie Miocene mountains nearly negroes Niagara Nova Scotia observed Ohio origin Pecopteris Pictou plants present Professor railway recent red sandstone region remarkable ridges river rocks sand seams seen shale shells Shubenacadie side Silurian slaves South Joggins species Stigmaria strata surface tertiary tion traveller trees tutors upper valley Virginia Windsor wood York СНАР
Populaire passages
Pagina 27 - An examination of the geological structure of the district, as laid open in the ravine, shows that at every step in the process of excavation, the height of the precipice, the hardness of the materials at its base, and the quantity of fallen matter to be removed, must have varied. At some points it may have receded much faster than at present, but in general its progress was probably slower, because the cataract, when it began to recede, must have had nearly twice its present height, and therefore...
Pagina 146 - I found another set of similar furrows, having the same general direction within five degrees ; and I made up my mind that, if these grooves could not be referred to the modern instrumentality of ice, it would throw no small doubt on the glacial hypothesis. When I asked my guide — a peasant of the neighborhood — whether he had ever seen much ice on the spot where we stood...
Pagina 114 - ... Dismal," and is no less than forty miles in length from north to south, and twenty-five miles in its greatest width from east to west, the northern half being situated in Virginia, the southern in North Carolina. I observed that the water was obviously in motion in several places, and the morass had somewhat the appearance of a broad inundated river-plain, covered with all kinds of aquatic trees and shrubs, the soil being as black as in a peatbog.
Pagina 115 - I learnt of this singular morass. It is one enormous quagmire, soft and muddy, except where the surface is rendered partially firm by a covering of vegetables and their matted roots ; yet, strange to say, instead of being lower than the level of the surrounding country, it is actually higher than nearly all the firm and dry land which encompasses it, and, to make the anomaly complete, in spite of its semi-fluid character, it is higher in the interior than towards its margin.
Pagina 146 - Parrsborough, and that the icy blocks, heaped on each other, and frozen together or ' packed,' at the foot of Cape Blomidon, were often fifteen feet thick, and were pushed along when the tide rose, over the sandstone ledges. He also stated that fragments of the
Pagina 131 - ... marshes. Thus at Beauly, I found upright stumps of trees of the pine, cedar and ilex, covered with live oysters and barnacles, and exposed at low tides; the deposit in which they were buried having been recently washed away from around them by the waves.
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