 This progression, by minute steps, in various directions, but always checked and balanced by the necessary conditions, subject to which alone existence can be preserved, may, it is believed, be followed out so as to agree with all the phenomena presented...  Journal of the Royal Geological Society of Ireland - Seite 150von Royal Geological Society of Ireland - 1860Vollansicht - Über dieses Buch
 | 1859 - 512 Seiten
...know what meaning to attach to it. Mr. Wallace says, "This progression by minute steps in different directions, but always checked and balanced by the...extraordinary modifications of form, instinct and habits which they exhibit." Does he mean that by the tendency to vary we may explain all the differences... | |
 | 1859 - 578 Seiten
...directions, but olwaya ehecked and balanced by the necessary cou» ditious, subject to which aloue existence can be preserved, may, it is believed, be...followed out so as to agree with all the phenomena preaented by organized bcings, thcir extinction and •uoeaasion in past agea, and all the extraordinary... | |
 | Alfred Russel Wallace - 1870 - 414 Seiten
...why domestic varieties have a tendency, when they become wild, to revert to the original type. This progression, by minute steps, in various directions,...extraordinary modifications of form, instinct and habits which they exhibit. III. MIMICRY, AND OTHER PROTECTIVE RESEMBLANCES AMONG ANIMALS. THERE is... | |
 | Alfred Russel Wallace - 1871 - 412 Seiten
...why domestic varieties have a tendency, when they become wild, to revert to the original type. This progression^ by minute steps, in various directions,...extraordinary modifications of form, instinct and habits which they exhibit. III. MIMICRY, AND OTHEE PROTECTIVE RESEMBLANCES AMONG ANIMALS, THERE is... | |
 | 1871 - 578 Seiten
...steps, in various directions, but always checked by certain necessary conditions, may serve to explain " all the phenomena presented by organized beings, their...extraordinary modifications of form, instinct, and habits which they exhibit." In his essay on "Mimicry and other Protective Resemblances amongst Animals,"... | |
 | 1871 - 588 Seiten
...steps, in various directions, but always checked by certain necessary conditions, may serve to explain " all the phenomena presented by organized beings, their...extraordinary modifications of form, instinct, and habits which they exhibit." In his essay on "Mimicry and other Protective Resemblances amongst Animals,"... | |
 | Andrew Wilson - 1883 - 444 Seiten
...tendency, when they become wild, to revert to the original type. This progression," continues Mr. Wallace, "by minute steps in various directions, but always...so as to agree with all the phenomena presented by organised beings, their extinction and succession in past ages, and all the extraordinary modifications... | |
 | Andrew Wilson - 1883 - 408 Seiten
...preserved, may, it is believed, be followed out so as to agree with all the phenomena presented by organised beings, their extinction and succession in past ages,...extraordinary modifications of form, instinct, and habits which they exhibit." Mr. Darwin's views were no less lucidly expressed. He agreed essentially... | |
 | George Thomas Bettany - 1887 - 228 Seiten
...insists on essentially the same view, which he calls that of progression and continued divergence. " This progression, by minute steps, in various directions,...so as to agree with all the phenomena presented by organised beings, their extinction and succession in past ages and all the extraordinary modifications... | |
 | Alfred Russel Wallace - 1891 - 518 Seiten
...why domestic varieties have a tendency, when they become wild, to revert to the original type. This progression, by minute steps, in various directions,...so as to agree with all the phenomena presented by organised beings, their extinction and succession in past ages, and all the extraordinary modifications... | |
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