 We may thus account even for the distinctness of whole classes from each other — for instance, of birds from all other vertebrate animals — by the belief that many animal forms of life have been utterly lost, through which the early progenitors of...  Science - Síða 16 breytti - 1880Heildartexta - Um bókina
 | Charles Darwin - 1896 - 360 síður
...belief that many ancient form? of life have been utterly lost, through -which the early piogenitors of birds were formerly connected with the early progenitors of the other and at that time less differentiated vertebrate classes. There has been much less extinction of the... | |
 | Thomas Henry Huxley - 1902 - 780 síður
...classes from each other — for instance of birds from all other vertebrate animals — by the belief that many animal forms of life have been utterly lost,...early progenitors of the other vertebrate classes." 1 Adverse criticism made merry over such suggestions as these. Of course it was easy to get out of... | |
 | Charles Darwin - 1904 - 588 síður
...N. America, by Prof. Marsh, completed the series of transitional forms between birds and rept1les, and removed Mr. Darwin's proposition that, ' many...region of hypothesis to that of demonstrable fact." worthy of its contents, and I can say nothing stronger than this. With cordial thanks, believe me,... | |
 | Charles Darwin - 1909 - 584 síður
...other — for instance, of birds from all other vertebrate animals — by the belief that many ancient forms of life have been utterly lost, through which...connected with the early progenitors of the other and at that time less differentiated vertebrate classes. There has been much less extinction of the... | |
 | David Starr Jordan - 1910 - 528 síður
...discovery of these ancestral birds: "The discovery of the toothed birds of the cretaceous formation of N. America, by Prof. Marsh, completed the series of transitional...region of hypothesis to that of demonstrable fact." This notable volume on toothed birds taken in connection with papers preceding and following it made... | |
 | Charles Darwin - 1911 - 584 síður
...series of transitional forms between birds and reptiles, and removed Mr. Darwin's proposition thai, ' many animal forms of life have been utterly lost,...vertebrate classes,' from the region of hypothesis to that y{ demonstrable fact." worthy of its contents, and I can say nothing stronger than this. With cordial... | |
 | Woodbridge Riley - 1926 - 376 síður
...to that of fact Darwin's difficulty as to many animal forms of life having been utterly lost, forms through which the early progenitors of birds were...early progenitors of the other vertebrate classes. More remarkable was a series of "transitional forms" 320 in the geological history of the horse. The... | |
 | Horniman Museum - 1928 - 92 síður
...classes from each other — for instance, of birds from all other vertebrated animals, by the belief that many animal forms of life have been utterly lost,...early progenitors of the other vertebrate classes." This comment of 1859 is of great interest (it and other like suggestions were made the subject of adverse... | |
 | Thomas Henry Huxley - 1997 - 398 síður
...classes from each other — for instance, of birds from all other vertebrate ammals — by the belief that many animal forms of life have been utterly lost,...early progenitors of the other vertebrate classes.'" Adverse criticism made merry over such suggestions as these. Of course it was easy to get out of the... | |
 | Charles Darwin - 2003 - 676 síður
...other — for instance, of birds from all other vertebrate animals — by the belief that many ancient forms of life have been utterly lost, through which...early progenitors of the other vertebrate classes. There has been less entire extinction of the forms of life which once connected fishes with batrachians.... | |
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