The Founders of GeologyMacmillan and Company, limited, 1897 - 297 Seiten |
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Academy Alps ancient appeared aqueous Auvergne basalt Brongniart Cambrian Carboniferous Central France century Chalk characters chemical precipitates craters Cuvier D'Aubuisson deposits Desmarest discovery district doctrine earth earth's crust Edinburgh Éloge England epoch eruptions essay Europe facts Floetz formations formed fossiliferous fossils France Freiberg Fuchsel geognosy geography geological geologists globe granite greywacke Guettard hills Hutton Illustrations inferred interest investigation journeys known labours land lava lecture limestone Lyell masses memoir mineralogy minerals and rocks mountains Murchison natural history Neptunists never observations Old Red Sandstone opinion organic remains origin of basalt Paris Playfair present progress published recognized regard region remarkable researches Saussure schists Scotland Sedgwick sediments sequence shells Silurian Smith Society stone strata stratigraphical structure succession surface Tertiary tion trace universal ocean valleys veins views Vivarais volcanic origin Volvic Vulcanists Wales Werner Wernerian whinstone whole
Beliebte Passagen
Seite 180 - ... of vallies, communicating with one another, and having such a nice adjustment of their declivities, that none of them join the principal valley, either on too high or too low a level ; a circumstance which would be infinitely improbable, if each of these vallies were not the work of the stream that flows in it.
Seite 162 - The mind seemed to grow giddy by looking so far into the abyss of time ; and, while we listened with earnestness and admiration to the philosopher who was now unfolding to us the order and series of these wonderful^ events, we became sensible how much farther reason may sometimes go than imagination can venture to follow.
Seite 223 - Let a number of leaves of paper, of several different sorts or colours, be pasted upon one another ; then bending them up together into a ridge in the middle, conceive them to be reduced again to a level surface, by a plane so passing through them as to cut off all the part that had been raised; let the middle now be again raised a little, and this will be a good general representation of most, if not all large tracts of mountainous countries, together with the parts adjacent, throughout the whole...
Seite 18 - An ingenious proposal for a new sort of Maps of Countrys, together with tables of sands and clays, such chiefly as are found in the north parts of England, drawn up about ten years since, and delivered to the Royal Society, March 12, 1683, by the Learned Martin Lister, MD...
Seite 182 - In the interpretation of nature, he remarks, "no powers are to be employed that are not natural to the globe, no action to be admitted of except those of which we know the principle, and no extraordinary events to be alleged in order to explain a common appearance.
Seite 285 - Deniarest was a hard-worked civil servant who snatched his intervals for geology from the toils of incessant official occupation. William Smith found time for his researches in the midst of all the cares and anxieties of his profession as an engineer and surveyor. Hutton, Hall...
Seite 181 - For the moving of large masses of rock, the most powerful engines without doubt which nature employs are the glaciers, those lakes or rivers of ice which are formed in the highest valleys of the Alps, and other mountains of the first order. These great masses are in perpetual motion, undermined by the influx of heat from the earth, and impelled down the declivities on which they rest by their own enormous weight, together with that of the innumerable fragments of rock with which they are loaded.
Seite 285 - Its advance to no select and privileged class. It has been open to all who cared to undergo the trials which its successful prosecution demands. And what It has, been In the past, It remains to-day. No branch of natural knowledge lies more Invitingly open to every student who, loving the fresh face of Nature, is willing to train his faculty of observation in the field and to discipline his mind by the patient correlation of facts and the fearless dissection of theories.
Seite 162 - What clearer evidence could we have had of the different formation of these rocks, and of the long interval which separated their formation, had we actually seen them emerging from the bosom of the deep ? We felt ourselves necessarily carried back to the time when the schistus on which we stood was yet at the bottom of the sea, and when the sandstone before us was only beginning to be deposited, in the shape of sand or mud, from the waters of a superincumbent ocean. An...
Seite 20 - Britannia Baconica; or, The Natural Rarities of England, Scotland, and Wales. According as they are to be found in every Shire. Historically related, according to the Precepts of the Lord Bacon; Methodically digested; and the Causes of many of them Philosophically attempted.