The Canadian Naturalist and Quarterly Journal of Science: With Proceedings of the Natural History Society of Montreal, Том 6Elkanah Billings, Bernard James Harrington, James Thomas Donald Dawson, 1872 |
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Стр. 17
... considerable in comparison with the minute variations of ' natural selection ' - are , in fact , sensible steps , such as discriminate species from species . That the latent tendency which exists to these sudden evolutions is determined ...
... considerable in comparison with the minute variations of ' natural selection ' - are , in fact , sensible steps , such as discriminate species from species . That the latent tendency which exists to these sudden evolutions is determined ...
Стр. 42
... considerable areas about Lakes Erie and St. Clair had been deeply excavated in the paleozoic rocks and filled with Post - pliocene deposits . The Devonian strata , he remarks , " are found in the region under consideration . at depths ...
... considerable areas about Lakes Erie and St. Clair had been deeply excavated in the paleozoic rocks and filled with Post - pliocene deposits . The Devonian strata , he remarks , " are found in the region under consideration . at depths ...
Стр. 43
... considerable portion of the island and to compare its rocks with those recognized upon the main - land of New Brunswick , I propose to give here some of the conclusions at which I have arrived . The general form of the island of Grand ...
... considerable portion of the island and to compare its rocks with those recognized upon the main - land of New Brunswick , I propose to give here some of the conclusions at which I have arrived . The general form of the island of Grand ...
Стр. 46
... considerable part of their area , both as exposed in the shore cliffs and over the interior , I have no hesitation in re - affirming the comparison , long since made by Dr. Gesner , between these rocks and those of the North Mountains ...
... considerable part of their area , both as exposed in the shore cliffs and over the interior , I have no hesitation in re - affirming the comparison , long since made by Dr. Gesner , between these rocks and those of the North Mountains ...
Стр. 47
... considerable admixture of deep green chloritic matter , and more rarely scales of black mica . Native copper is sometimes met with , and considerable masses of this mineral are said to have been found at different times in the ...
... considerable admixture of deep green chloritic matter , and more rarely scales of black mica . Native copper is sometimes met with , and considerable masses of this mineral are said to have been found at different times in the ...
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Часто встречающиеся слова и выражения
appear Arctic seas Bala Barrande basin beds Bohemia Boulder-clay boulders brachiopods Brunswick Canada coal coast colonies crustacea deposits dorsal drift Etage fathoms feet formation Fossil-Leda clay Fossil-Montreal Fossil-Rivière-du-Loup fossiliferous fossils Gaspé genus Geol Geological glacial glaciers granite graptolites gravel Greenland groove Gulf of St Gulf St hills iron Island Labrador Packard Lake land Laurentian Lawrence Leda clay limestone Lingula-flags Llandeilo Lower Silurian marine mass minerals Montreal Mountain Murchison Murray Bay nearly North Nova Scotia observed occur Olenus paleozoic Pliocene portion Post-pliocene present primordial Prof Quebec rare Recent Gulf referred regard region remarkable ridges River Rivière-du-Loup rocks sandstone Saxicava sand schists second fauna Sedgwick seen shales shells shore side slates slope Society species specimens stones strata striæ striation surface Survey terrace thickness third fauna tion trachyte trilobites Upper Cambrian Upper Silurian valley ventral valve whale Whiteaves
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Стр. 145 - 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. 153 - 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 can recal his infancy, I should expect to be a witness of the evolution of living protoplasm from not living matter.
Стр. 153 - 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. 145 - ... we must regard it as probable in the highest degree that there are countless seed-bearing meteoric stones moving about through space. If at the present instant no life existed upon this Earth, one such stone falling upon it might, by what we blindly call natural causes, lead to its becoming covered with vegetation.
Стр. 146 - But overpoweringly strong proofs of intelligent and benevolent design lie all around us ; and if ever perplexities, whether metaphysical or scientific, turn us away from them for a time, they come back upon us with irresistible force, showing to us through nature the influence of a free will, and teaching us that all living beings depend on one ever-acting Creator and Ruler.* Lord Kelvin frequently expressed himself very emphatically on this matter.
Стр. 145 - 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. 431 - 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. 142 - The essence of science, as is well illustrated by astronomy and cosmical physics, consists in inferring antecedent conditions, and anticipating future evolutions, from phenomena which have actually come under observation.
Стр. 143 - ... 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. I utterly repudiate, as opposed to all philosophical uniformitarianism, the assumption of " different meteorological conditions...
Стр. 135 - ... 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,...