The American Journal of ScienceJ.D. & E.S. Dana, 1885 |
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acid amount animalcule appears Archæan Arctic beds bowlders cent chemical Claiborne clay climate color containing copper Cretaceous crystals deposits determined diameter digestibility Dinoceras Dinocerata earthquake east Eocene evidence experiments facts fathoms fauna feet figures formation fossils galvanometer genus Geological Survey geologists glacial glacier gneiss granite gravel Grms heat Huronian inch interglacial Island Jackson Journal Jurassic Lake limestone lorica lower magnetic mass matter mica mica schist miles mineral Miocene moraine mountain nearly observed obtained occur overlying paleontologists paper period plates portion posterior present prisms probably Professor quartz quartzyte region ridges river rocks safflorite sand sandstone schist SCI.-THIRD SERIES side Silurian slates species specific gravity specimens staurolites strata strip surface temperature Tertiary thickness Tiemannite tion topaz unconformity ungulate upper ventral volume weight
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Стр. 83 - From the recorded testimony of many competent witnesses, past and present, including observations recently made by scientific men of eminence in various countries, there appears to be, amidst much illusion and deception, an important body of remarkable phenomena, which are prima facie inexplicable on any generally recognized hypothesis, and which, if incontestably established, would be of the highest possible value.
Стр. 78 - ... inequalities as exhibited by the daily temperature-ranges at Toronto and at Kew. 2. While the sun-spots and the Kew temperature-range inequalities present evidence of a single oscillation, the corresponding Toronto temperature-range inequalities present evidence of a double oscillation.
Стр. 11 - ... opportunity of studying the Eriboll sections, which, from the days of Macculloch down to the present time, have been such a fruitful subject of discussion. It was a special injunction to the officers now intrusted with the detailed survey of the region to divest themselves of any prepossessions in favor of published views and to map the actual facts in entire disregard of theory.
Стр. 77 - Stokes has pointed out, it is not necessary for our present purpose to discuss the question whether these sun-spot inequalities have a real or only an apparent periodicity. All that is needful is to treat the terrestrial phenomena in a similar manner, or in a manner as nearly similar as the observations will allow, and then see whether they also exhibit periodicities (apparent or real) having virtually the same times as those of sun-spots, the phases of the two sets of phenomena being likewise allied...
Стр. 13 - Having satisfied myself that Murchison's explanation of the order of sequence could not be established in Eriboll, I was desirous to see again, in the new light now obtained, some of the Ross-shire sections for the description of which I am responsible. Had these sections been planned for the purpose of deception they could not have been more skilfully devised. The parallelism of dip and strike between the Silurian strata and the overlying schists is so complete as to prove the most intimate relationship...
Стр. 27 - Egypt1 into the eastern basin of the Mediterranean and the Black Sea ; while it is probable that there was a communication between the Baltic and the White Sea, leaving Scandinavia as an extensive island. Turning to India, we find that an arm of the sea of great width and depth extended from the Bay of Bengal to the mouths of the Indus ; while the enormous depression indicated by the presence of marine fossils of Eocene age at a height of 16,500 feet in Western Tibet, renders it not improbable that...
Стр. 11 - With every desire to follow the interpretation of my late chief, I criticised minutely each detail of the work upon the ground, but I found the evidence altogether overwhelming against the upward succession which Murchison believed to exist in Eriboll from the base of the Silurian strata into an upper conformable series of schists and gneisses.
Стр. 12 - Eriboll, could not be distinguished from ordinary stratification-planes, like which they have been plicated, faulted, and denuded. Here and there, as a result of denudation, a portion of one of them appears capping a hill-top. One almost refuses to believe that the little outlier on the summit does not lie normally on the rocks below it, but on a nearly horizontal fault by which it has been moved into its place.
Стр. 112 - ... juniores ad labores," that the laboring oar would be taken by the younger of the pair. It was long and severe work for both ; but the veteran was happily quite free from, and his companion heavily weighted by, onerous official duties and cares ; and so it came to pass that about two thirds of the orders and genera were elaborated by Mr. Bentham. In April, 1883, the completion of the work (ie of the genera of Phaenogamous plants, to which it was limited) closed this long and exemplary botanical...
Стр. 54 - Since then, staining the film has been found to have other applications ; and many others have experimented in this direction, in most cases with a view to alter its sensitiveness relatively to the different colours of the spectrum. Major Waterhouse was, I believe, the first to recognize this effect. Dr. John W. Draper appears to have first advanced the view that substances sensitive to light are affected by the rays which they absorb. There is much to support this theory, although it cannot be considered...