 | 1859 - 578 sayfa
...form of the parent species ; and this instability ia considered to be a distinctive peculiarity of nil varieties, even of those occurring among wild animals...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are... | |
 | Alfred Russel Wallace - 1875 - 454 sayfa
...supposed to prove tlie permanent distinctness of Species. ONE of the strongest arguments which have heen adduced to prove the original and permanent distinctness...created distinct species. In the absence or scarcity of fects and observations as to varieties occurring among wild animals, this argument has had great weight... | |
 | Alfred Russel Wallace - 1891 - 516 sayfa
...1, and Life and Letters, vol. ii. chap, iv., pp. 115-129 and 145.) II ON THE TENDENCY OF VARIETIES TO DEPART INDEFINITELY FROM THE ORIGINAL TYPE Instability...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are... | |
 | Alfred Russel Wallace - 1891 - 516 sayfa
...about the publication of this ( l with the ample recognition by Darwin II ON THE TENDENCY OF VARIETIES TO DEPART INDEFINITELY FROM THE ORIGINAL TYPE Instability...varieties occurring among wild animals, this argument has ha<i great weight with naturalists, and has led to a very general and somewhat prejudiced belief in... | |
 | 1902 - 584 sayfa
...the Tendency of Varieties to depart indefinitely from the Original Type. By ALFRED RDSSEL WALLACE. One of the strongest arguments which have been adduced...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are... | |
 | 1858 - 478 sayfa
...the Tendency of Varieties to depart indefinitely from the Original Type. By ALFBED RUSSEL WALLACE. One of the strongest arguments which have been adduced...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are... | |
 | C. Leon Harris - 1981 - 360 sayfa
...On the Tendency of Varieties to depart indefinitely from the Original Type. By Alfred Russel Wallace One of the strongest arguments which have been adduced...unchanged the originally created distinct species. ln the absence or scarcity of facts and observations as to varieties occurring among wild animals,... | |
 | Charles Darwin, Frederick Burkhardt - 1985 - 726 sayfa
...the Tendency of Varieties to depart indefinitely from the Original Type. By ALFRED RUSSEL WALLACE. One of the strongest arguments which have been adduced...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are... | |
 | Charles Darwin - 1996 - 382 sayfa
...ON THE TENDENCY OF VARIETIES TO DEPART INDEFINITELY FROM THE ORIGINAL TYPE BY ALFRED RUSSEL WALLACE One of the strongest arguments which have been adduced...unchanged the originally created distinct species. 4. Notebook E:114; (Chapter 2, 75). In the absence or scarcity of facts and observations as to varieties... | |
 | Edmund Blair Bolles - 1999 - 518 sayfa
...specialists. Yet Wallace's essay still shines with its clear outline of the process of natural selection. One of the strongest arguments which have been adduced...originally created distinct species. In the absence of scarcity of3 facts and observations as to varieties occurring among wild animals, this argument... | |
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One of the strongest arguments which have been adduced to prove the original and permanent distinctness of species is, that varieties produced in a state of domesticity are more or less unstable, and often have a tendency, if left to themselves, to return... 
