The Canadian Naturalist and Quarterly Journal of ScienceDawson Bros., 1872 |
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Стр. 31
... hills and down the Atlantic slope of America . On either hypothesis there are difficulties in accounting for some sets of striae , but on that last - mentioned I believe them to be insuper- able . It is evident from the descriptions of ...
... hills and down the Atlantic slope of America . On either hypothesis there are difficulties in accounting for some sets of striae , but on that last - mentioned I believe them to be insuper- able . It is evident from the descriptions of ...
Стр. 32
... hills , and , flowing over the ridge of hard rock which connects them at the Thousand Islands , would cut out the long basin of Lake Ontario , heaping up at the same time in the lee of the Laurentian ridge , the great mass of boulder ...
... hills , and , flowing over the ridge of hard rock which connects them at the Thousand Islands , would cut out the long basin of Lake Ontario , heaping up at the same time in the lee of the Laurentian ridge , the great mass of boulder ...
Стр. 36
... hills on the north side of the St. Lawrence , it is probable that deposits of Leda clay contem- poraneous with these high - level marine beds were formed in the lower parts of the plain at depths exceeding one hundred fathoms . The ...
... hills on the north side of the St. Lawrence , it is probable that deposits of Leda clay contem- poraneous with these high - level marine beds were formed in the lower parts of the plain at depths exceeding one hundred fathoms . The ...
Стр. 37
... hills to the north . Where the Leda clay rests on Boulder - clay , which may be supposed to be of terres- trial origin , subsidence is of course implied ; and it is interesting to observe that the conditions thus required are the ...
... hills to the north . Where the Leda clay rests on Boulder - clay , which may be supposed to be of terres- trial origin , subsidence is of course implied ; and it is interesting to observe that the conditions thus required are the ...
Стр. 91
... hills from the State of New York to the valley of the McKenzie River in British America . He conceives that toward the close of the glacial epoch a great fresh- water sea filled the central part of the area , extending eastward as far ...
... hills from the State of New York to the valley of the McKenzie River in British America . He conceives that toward the close of the glacial epoch a great fresh- water sea filled the central part of the area , extending eastward as far ...
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appear Arctic Bala Barrande basin beds Bohemia Boulder-clay boulders brachiopods Brunswick Canada Caradoc coal coast colonies colour contains crystalline crystals deposits dorsal drift Etage feet formation Fossil-Montreal fossiliferous fossils Gaspé genus Geol glacial glaciers granite graptolites gravel Gulf of St Gulf St hills hornblende iron Island Labrador Lake land Laurentian Lawrence Leda clay limestone Lingula-flags Llandeilo Lower Silurian marine mass mica minerals Montreal Mountain Murchison Murray Bay nearly North Nova Scotia observed occur Olenus orthoclase paleozoic Pliocene porphyritic portion Post-pliocene present primordial Prof quartz Quebec recent referred regard region remarkable ridges River Rivière-du-Loup rocks sandstone Saxicava sand schists second fauna Sedgwick seen shales shells shore side Silurian system slates slope species specimens stones strata stratified striæ striation surface terrace thickness third fauna tion trachyte trilobites Upper Cambrian Upper Silurian valley ventral valve whale Whiteaves
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Стр. 143 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
Стр. 151 - But expectation is permissible where belief is not; and if it were given me to look beyond the abyss of geologically recorded time to the still more remote period when the earth was passing through physical and chemical conditions, which it can no more see again than a man may recall his infancy, I should expect to be a witness of the evolution of living protoplasm from not living matter.
Стр. 151 - Abiogenesis ever has taken place in the past or ever will take place in the future. With organic chemistry, molecular physics, and physiology yet in their infancy, and every day making prodigious strides, I think it would be the height of presumption for any man to say that the conditions under which matter assumes the properties we call " vital " may not, some day, be artificially brought together.
Стр. 143 - It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent on each other in so complex a manner, have all been produced by laws acting around us.
Стр. 141 - organic cells," or "protoplasm." But science brings a vast mass of inductive evidence against this hypothesis of spontaneous generation, as you have heard from my predecessor in the Presidential chair. Careful enough scrutiny has, in every case up to the present day, discovered life as antecedent to life. Dead matter cannot become living without coming under the influence of matter previously alive. This seems to me as sure a teaching of science as the law of gravitation.
Стр. 429 - Logan attempted a new explanation of the stratigraphy of the region; declaring at the same time that, "from the physical structure alone, no person would suspect the break which must exist in the neighborhood of Quebec ; and without the evidence of the fossils every one would be authorized to deny it." (Ibid., page 218.) The typical Potsdam sandstone of the New York system, as seen in the Ottawa basin in northern New York and the adjacent parts of Canada, affords but a very meagre fauna, including...
Стр. 429 - River group, or forming part of a series of strata which he is inclined to rank as a distinct group above the Hudson River proper. -It would be quite superfluous for me to add one word in support of the opinion of the most able stratigraphical geologist of the American continent" Paleontology and stratigraphy here came into conflict, and it was not till in 1860, when Mr.
Стр. 133 - ... with which a star approaches to or recedes from the earth. The principle is, first to identify, if possible, one or more of the lines in the spectrum of the star, with a line or lines in the spectrum of sodium, or some other terrestrial substance, and then (by observing the star and the artificial light simultaneously by the same spectroscope) to find the difference, if any, between their refrangibilities. From this difference of refrangibility the ratio of the periods of the two lights is calculated,...
Стр. 128 - The discovery by Fraunhofer of a coincidence between his double dark line D of the solar spectrum and a double bright line which he observed in the spectra of ordinary artificial flames. (2) A very rigorous experimental test of this coincidence by Prof.