We opened the leaden chests of presents from Professor Hochstetter and the Geological Society, and were much amused by their contents.
These are, however, by no means regular chains, but on the contrary are a complex result of upheavals which took place at different geological epochs, and of denudation on a colossal scale.
See maps and explanatory memoirs of the Geological Survey of Ireland (Dublin); G.
Yet it is altogether improbable that projectiles from terrestrial volcanoes should, at any geological epoch, have received impulses powerful enough to enable them, not only to surmount the earth's gravity, but to penetrate its atmosphere.
But the negative evidence ofgeological deposits appears fatal to it.
We may therefore reasonably hope, when more extensive geological investigations are made, which are greatly assisted by the constructions of railroads and mines, to find a great number of other important petrifactions.
Friedrich Rolle, Man, his Derivation and Civilization, in the Light of Darwin's Theory of the Origin of Species, based on Recent Geological Discoveries.
Moreover, human life, which at most attains the length of a century, is an extremely short space of time, and is not suitable as a standard for the measurement of geological periods.
I dedicated the volume to the Duke of Argyll, because I had been so long associated with him in geological affairs, and also because of the deep friendship which I entertained for his Grace.
I was present at a meeting of the Geological Society at Manchester in 1853, in the discussions of which I took part.
I dug out some of the specimens, and afterwards distributed them amongst my geological friends.
Being an acute observer, Hall's attention was first attracted to the subject by the singular geological features of the sea-coast near his mansion at Dunglass.
It was a vast treat to me to see those distinct evidences of actions so remotely separated in point of geological time--in respect to which even a million of years is a humble approximate unit* [footnote.
Siemens says: "The effect of this continuous outpour of solar materials could not be without very important influences as regards the geological conditions of our earth.
But my chief interest was in the specimens of highgeological interest which the Duke showed me.
Oh, that blessed geologicalaccident that broke up a strait between Calais and Dover!
These illustrations serve to illustrate one of the most potent of geological agencies which has given the earth's surface its grandest characteristics.
A represents cracks in a region of the Moon known as Flammarion's Circle, the other B represents the great rift in southern Africa, probably the most stupendous phenomenon in geological history.
It continued to settle during the next geological period of millions of years, and layer after layer of sediments were washed in and deposited on top of it.
Then during the nextgeological (Cretaceous) period, a long arm of a sea flooded this part of the country.
In speaking of the appearance of the surface it has been mentioned that it is sandy or clayey, and it may be useful now to say a few words concerning the geological formations of the country.
This route was followed by Schwatka and Mr. Hayes, of the United States Geological Survey, a few years ago, and has been partially surveyed with reference to a railroad line, and reported to be available.
But the most important view which it contains is that which relates to the effect of embankment in rivers, and to the geological changes produced by the distribution of alluvia.
American author who discovered this defect in the geological doctrine, conjectures that those large quadrupeds may have migrated, like the buffalos, during the change of seasons.
While we were engaged in taking a geological survey of his manor of Blenheim, the leaves of the forest had expanded to almost the common size in cloudy weather.
Reports of theGeological Survey of Ohio' (Geology and Palæontology).
The periods of tranquillity were supposed to have been long and protracted; and during each of them it was thought that one of the great geological "formations" was deposited.
A recent observation by Sir Wyville Thomson would, however, render it not improbable that some of the great argillaceous accumulations of past geological periods may be really organic.
Inconceivable as is to us the lapse of "geological time," it is no more than "a mere moment of the past, a mere infinitesimal portion of eternity.
Applied to the oldest of the great geological epochs.
Though there has not been continuity in any given area, still thegeological chain could never have been snapped at one point, and taken up again at a totally different one.
It is not believed that any general or universal destruction of life took place at the termination of each geological period, or that a general introduction of new forms took place at the commencement of a new period.
These river gravels are amongst the most interesting of Cambridgeshire geological formations.
The fen hereabouts is rich in geologicaland archaeological remains.
Footnote 101: This restoration had the advantage of being carried out under the auspices of a man of real architectural taste (though better known by his geological distinction), the Rev.
In the skull of one of these last, now in the Sedgwick Geological Museum at Cambridge, is imbedded a flint axe-head.
We first met at the Comparative Anatomy course, and in the galleries of the Museum, attracted thither by the same study--the unity of geological structure.
I cannot upon this point bring forward a better witness than Professor Huxley, who, in his most interesting essay onGeological Contemporaneity (Lay Sermons, p.
I do not doubt but that those huge monsters, whose remains we behold in geological museums, were the most dull and stupid creatures possible.
And the appearances and disappearances of species which the geological record shows us, as well as the connections between successive groups of species from early eras down to our own, cease to be inexplicable.
Second, geological discoveries, which show that the earth has reached its present varied structure through a process of evolution.
The totality of the plants growing naturally in a country or during a given geological period.
The totality of the animals naturally inhabiting a certain country or region, or which have lived during a given geological period.
Nothing can be more erroneous than the idea of a firm and unchangeable outline of our continents, such as is impressed upon us in early youth by defective lessons on geography, which are devoid of a geological basis.
I need hardly draw attention to the fact that these geological changes of the earth's surface have ever been exceedingly important to the migrations of organisms, and consequently to their Chorology.
In consequence of geological changes of the earth's crust, elevations and depressions of the ground take place everywhere, sometimes more strongly marked in one place, sometimes in another.
It is unnecessary here to enter into detail as to the ice period itself, and into investigations about its limits, and I may omit this all the more reasonably since the whole of our recent geological literature is full of it.
The former were separated by geological depressions, the latter by elevations.
For geological excursions the railway between Le Puy to +Langeac+ by St. Georges d’Aurac is very useful.
In the wall are a great number of what the people call "black stones," a geological formation, making them seem fused by fire.
Mr. Taylor emigrated in the year 1830, being previously well known as a Fellow both of the Antiquarian and of the Geological Societies.
On the mainland were Norway pines, indicating a new geological formation, and it was such a dry and sandy soil as we had not noticed before.
You are only realizing once more what all nature distinctly remembers here, for no doubt the waters flowed thus in a former geological period, and, instead of being a lake country, it was an archipelago.
Associated with Marsh as paleontologist for the Geological Survey was Edward Drinker Cope, whose work was second only to the older man's in importance.
In hisgeological surveys of the country, he had been impressed with the richness of the copper mines on Lake Superior.
I doubt if there are ten living men who, having a practical knowledge of what a coral-reef is, have endeavoured to master the very difficult biological and geological problems involved in their study.
For he defines uniformitarianism to be the assumption of the "extreme slowness and perfect continuity of all geological changes.
He did not say that the geological operations of nature were never more rapid, or more vast, than they are now; what he did maintain is the very different proposition that there is no good evidence of anything of the kind.
Geological Surveys of New Hampshire, Minnesota, and the United States.
As to the "extreme slowness of allgeological changes," it is simply a popular error to regard that as, in any wise, a fundamental and necessary dogma of uniformitarianism.
And geological science has become what it is, chiefly because geologists have gradually accepted Lyell's doctrine and followed his precepts.
Footnote 6: This sketch is intended simply as a guide to the superficial observer, on a few hours' detention in the island, and in no way with a view to geological disquisition.
It becomes known that the strata of the earth's surface have been forming throughout untold ages, and that successive populations differing utterly from one another have peopled the earth in different geological epochs.
But the geologist tells us that this isthmus rose at a comparatively recent geological period, though it is hinted that there had been some time previously a temporary land connection between the two continents.
Mr. Evans communicated to the Society of Antiquaries a memoir on the character and geological position of the 'Flint Implements in the Drift,' which appeared in the Archaeologia for 1860.
This citation of observations, which when once pointed out seemed almost self-evident, came as a revelation to the geological world.
It contained the idea, however faultily interpreted, of a chronological succession of strata; and it furnished a working outline for the observers who were to make out the true story of geological development.
At Engis he had found human bones, including skulls, intermingled with those of extinct mammals of the mammoth period in a way that left no doubt in his mind that all dated from the same geological epoch.
Some glacialists even hold the view first suggested by Ramsey, of the British Geological Survey, that the great glacial sheets scooped out the basins of many lakes, including the system that feeds the St. Lawrence.
Speaking of him at the time of his death as one of the last survivors of the heroes who laid the foundation of geological science, Prof.
Previous to the execution of this work, all geological evidence as to the antiquity of man had been received, even by English geologists of the first rank, with what Pengelly called apathy and skepticism.
After the work it soon became evident, Pengelly said in an address to the Section of Anthropology of the British Association, in 1883, that this geological apathy had been more apparent than real.
Geologists," he said, "see no mode of reconciling the Mosaic account of creation with geological science.
It would be impracticable in a brief sketch to follow the detail of Pengelly's geological investigations previous to his engaging in systematic cave exploration.
The first of the more important geological researches with which Pengelly's name is intimately associated was the exploration of the peculiar formation at Bovey Tracey, for the identification of its fossils and the determination of its age.
He wrote papers concerning the geology of the shore of Lake Michigan and of the region about Chicago; brought two fossil trees found in the university grounds to scientific notice; and contributed considerably to geological publications.
Marsh, professor of paleontology in Yale University, and curator of the geological collection of that institution, died of pneumonia at his home in New Haven, Connecticut, March 18th.
Marsh, recently deceased, at the International Geological Congress in London, in 1888.
He was president of the Geological Section at the Plymouth meeting, 1877.
During the period that has intervened he made studies of the results of his explorations and other geological work, and published papers of very high scientific value.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "geological" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: geodetic; geographic; geographical
