The refutation of Darwinism; and the converse theory of development; based ... upon Darwin's facts1880 - Всего страниц: 454 |
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Стр. 11
... instance in point , with respect to the diver- sity , or divergence of character above mentioned , is the Pigeon ; each of whose principal varieties , has some one feature peculiarily characteristic of it . An instance of convergence of ...
... instance in point , with respect to the diver- sity , or divergence of character above mentioned , is the Pigeon ; each of whose principal varieties , has some one feature peculiarily characteristic of it . An instance of convergence of ...
Стр. 13
... instances , of great modi- fication . Even the bones , and the internal organs— the liver , the kidneys , the vertebræ , the reproductive organs , the œsophagus , the intestinal canal — have been shown to be greatly modified . Cases of ...
... instances , of great modi- fication . Even the bones , and the internal organs— the liver , the kidneys , the vertebræ , the reproductive organs , the œsophagus , the intestinal canal — have been shown to be greatly modified . Cases of ...
Стр. 17
... instance , whether these variations are amenable to any limit ; the question , too , whether it be legitimate to estimate the amount of improvement possible to occur in millions of years , by means of these variations , from the amount ...
... instance , whether these variations are amenable to any limit ; the question , too , whether it be legitimate to estimate the amount of improvement possible to occur in millions of years , by means of these variations , from the amount ...
Стр. 50
... instances , implies an enormous amount of modification in the descendants " ( p . 572 , Origin of Species ) . " With species , under a state of nature , rudimentary organs are so extremely common , that scarcely one species can be ...
... instances , implies an enormous amount of modification in the descendants " ( p . 572 , Origin of Species ) . " With species , under a state of nature , rudimentary organs are so extremely common , that scarcely one species can be ...
Стр. 58
... the cases of rudimentary organs are very curious ; for instance , the presence of teeth in foetal whales which , when grown up , have not a tooth in their heads ; and the presence of teeth , which 58 VARIATIONS , DUE TO REVERSION .
... the cases of rudimentary organs are very curious ; for instance , the presence of teeth in foetal whales which , when grown up , have not a tooth in their heads ; and the presence of teeth , which 58 VARIATIONS , DUE TO REVERSION .
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The Refutation of Darwinism: And the Converse Theory of Development; Based ... T Warren O'Neill Недоступно для просмотра - 2014 |
The Refutation of Darwinism: And the Converse Theory of Development; Based ... T Warren O'Neill Недоступно для просмотра - 2018 |
The Refutation of Darwinism: And the Converse Theory of Development; Based ... T Warren O'Neill Недоступно для просмотра - 2015 |
Часто встречающиеся слова и выражения
acters adduced advance in development Animals and Plants argument arise assumption breeder breeds Cattle char close-interbreeding constitutional vigor coördination crystal Darwin says Darwin's theory defects degeneration degree disproportionate development distinct species divergence of character divergent varieties domestication entailed evil effects evil results evolved explain extinction facts fancier fancy fancy breeds flowers Fowl given species Herbert Spencer hypothesis ignorance imply improvements in-and-in individuals innate tendency interbred interbreeding law of nature legs lessened fertility long-lost characters Man's Selection ment modification mongrels Natural Selection normal number of characters occur offspring once lost Origin of Species parents peculiarities peloric perfect type phenomena physiological Pigeon pistils pollen positive characters positive variations presumption proportion proportionate development races re-development reader regain remarks reproductive element respective species says Darwin seed self-fertilization self-impotent Sheep slight stamens sterility of hybrids structure Struggle for Existence theory of Reversion tion vary velopment viduals wholly
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Стр. 132 - We behold the face of nature bright with gladness, we often see superabundance of food ; we do not see, or we forget, that the birds which are idly singing round us mostly live on insects or seeds, and are thus constantly destroying life ; or we forget how largely these songsters, or their eggs, or their nestlings, are destroyed by birds and beasts of prey...
Стр. 133 - When we travel southward and see a species decreasing in numbers, we may feel sure that the cause lies quite as much in other species being favored, as in this one being hurt.
Стр. 132 - Climate plays an important part in determining the average numbers of a species, and periodical seasons of extreme cold or drought, I believe to be the most effective of all checks.
Стр. 149 - Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations useful in some way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations ? If such do occur, can we doubt (remembering that many more...
Стр. 131 - Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult — at least I have found it so — than constantly to bear this conclusion in mind.
Стр. 86 - In every living creature we may feel assured that a host of long-lost characters lie ready to be evolved under proper conditions. How can we make intelligible and connect with other facts, this wonderful and common capacity of reversion, — this power of calling back to life long-lost characters...
Стр. 299 - In Saxony the importance of the principle of selection in regard to merino sheep is so fully recognised, that men follow it as a trade: the sheep are placed on a table and are studied, like a picture by a connoisseur; this is done three times at intervals of months, and the sheep are each time marked and classed, so that the very best may ultimately be selected for breeding.
Стр. 172 - Nothing is more indicative of high breeding than this; and the legs should be no longer than, when fully fat, would just prevent the animal's belly from trailing upon the ground. The leg is the least profitable portion of the hog, and we therefore require no more of it than is absolutely necessary for the support of the rest.
Стр. 52 - I have stated that the most probable hypothesis to account for the reappearance of very ancient characters, is — that there is a tendency in the young of each successive generation to produce the long-lost character, and that this tendency, from unknown causes, sometimes prevails.
Стр. 65 - Crossing as a direct cause of Reversion. — It has long been notorious that hybrids and mongrels often revert to both or to one of their parent- forms, after an interval of from two to seven or eight, or, according to some authorities, even a greater number of generations. But that the act of crossing in itself gives an impulse towards reversion, as shown by the reappearance of long-lost characters, has never, I believe, been hitherto proved.