The American Geologist, Nide 1Newton Horace Winchell Geological Publishing Company, 1888 Includes section "Review of recent geological literature." |
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... - acity for irrigation . L. E. HICKS .... 69 The flora of the Coast islands of California in relation to recent changes of physical geography . JOSEPH L. CONTE 76 Observations on the vertical range of certain species of fossils.
... - acity for irrigation . L. E. HICKS .... 69 The flora of the Coast islands of California in relation to recent changes of physical geography . JOSEPH L. CONTE 76 Observations on the vertical range of certain species of fossils.
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Newton Horace Winchell. Observations on the vertical range of certain species of fossils of the Hamilton period in western Ontario . S. CALVIN 81 86 A short history of the origin and acts of the International Congress of Geologists , and ...
Newton Horace Winchell. Observations on the vertical range of certain species of fossils of the Hamilton period in western Ontario . S. CALVIN 81 86 A short history of the origin and acts of the International Congress of Geologists , and ...
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... observations and of information contributed by the expert workers of the world from which teachers may draw new facts and new ways of combining them . The ways and means of scientific instruc- tion need to be made known to ten ...
... observations and of information contributed by the expert workers of the world from which teachers may draw new facts and new ways of combining them . The ways and means of scientific instruc- tion need to be made known to ten ...
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... observed he had definite and correct ideas of their nature . The name , and the first announcement of it , were accredited to Messrs Logan and Hunt jointly . Mr. Hunt , who has written largely of the Huronian , took his conception of ...
... observed he had definite and correct ideas of their nature . The name , and the first announcement of it , were accredited to Messrs Logan and Hunt jointly . Mr. Hunt , who has written largely of the Huronian , took his conception of ...
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... observations here recorded were made during a connection with the work of the Minnesota geological survey , and are published with the sanction of the state geologist . Full details will be given in the sixteenth annual report of the ...
... observations here recorded were made during a connection with the work of the Minnesota geological survey , and are published with the sanction of the state geologist . Full details will be given in the sixteenth annual report of the ...
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abundant American committee AMERICAN GEOLOGIST Animike Archæan augite beds biotite bryozoa Cambrian character chert Cincinnati clay coal color Congress coral Cretaceous crinoids crystalline crystals Darwin deposits described diabase division driftless area dyke eastern sandstone Emmons epidote evidence fact fauna feet feldspar formation fossils gabbro genera genus Geol geological survey geologists grained granites Hall hornblende Huronian Iowa islands James Keweenaw lake layers limestone lower magnetite mass miles Miller minerals Minnesota Missouri mountains natural Nicholson occur Ohio olivine original orthoclase palæontological plagioclase plates porphyries portion Potsdam present primordial probably Prof quartz quartzyte range reef referred region river rocks sandstone schists scientific shales shell shore side Silurian slates species specimens strata stratigraphic structure surface Taconic system theory thickness tion tubes Ulrich unconformably upper valley Walcott York
Suositut otteet
Sivu 254 - ... philosophical, educational, scientific, or literary purposes, or for the encouragement of the fine arts, or for the use or by order of any college, academy, school or seminary of learning in the United States...
Sivu 218 - The interest excited was intense, but the subject was too novel and too ominous for the old school to enter the lists, before armouring. After the meeting it was talked over with bated breath : Lyell's approval, and perhaps in a small way mine, as his lieutenant in the affair, rather overawed the Fellows, who would otherwise have flown out against the doctrine.
Sivu 155 - s lectures on Geology and Zoology, but they were incredibly dull. The sole effect they produced on me was the determination never, as long as I lived, to read a book on geology, or in any way to study the science.
Sivu 253 - ... purposes, or for the encouragement of the fine arts, or for the use or by order of any college, academy, school, or seminary of learning in the United States, subject to such regulations as the Secretary of the Treasury shall prescribe.
Sivu 394 - ... awarded annually for the best publication, exploration, discovery, or research in the sciences of geology and paleontology, or in such particular branches thereof as may be designated. The award, and all matters connected therewith, are to be determined by a committee to be selected in an appropriate manner by the academy. The recognition is not to be confined to American naturalists.
Sivu 156 - Idwal, examining all the rocks with extreme care, as Sedgwick was anxious to find fossils in them; but neither of us saw a trace of the wonderful glacial phenomena all around us: we did not notice the plainly scored rocks, the perched boulders, the lateral and terminal moraines. Yet these phenomena are so conspicuous that, as I declared in a paper published many years afterwards in the Philosophical Magazine, a house burnt down by fire did not tell its story more plainly than did this valley.
Sivu 209 - The atigite occurs both in simple individuals and in polysomatic masses. It exhibits the usual marginal alteration to hornblende and there is besides a certain amount of chlorite. Original magnetite is frequently surrounded by a margin of secondary biotite. Micropegmatitic quartz is abundant. It is often intimately intergrown with the feldspar, and as the latter is much decomposed, would seem to replace it as a partial pseudomorph, but apatite needles of the same...
Sivu 196 - Sea to the 49th parallel, have been ransacked for plants, and when the pateobotanists of the United States shall have succeeded in unravelling the confusion which now exists between their Laramie and the Middle Tertiary, the geologist of the future will be able to restore with much certainty the distribution of the vast forests which in the early Eocene covered the now bare plains of interior America. Further, since the break which in Western Europe separates the flora of the Cretaceous from that...
Sivu 160 - ... by reflecting how much the progress of opinion in Geology had been influenced by the assumption that the analogy was slight in kind, and still more slight in degree, between the causes which produced the former revolutions of the globe, and those now in every-day operation. It appeared clear that the earlier geologists had not only a scanty acquaintance with existing changes, but were singularly unconscious of the amount of their ignorance. With the presumption naturally inspired by this unconsciousness,...
Sivu 160 - ... and subterranean movements. It also endeavours to estimate the aggregate result of ordinary operations multiplied by time, and cherishes a sanguine hope that the resources to be derived from observation and experiment, or from the study of Nature such as she now is, are very far from being exhausted. For this reason...