| Solomon Herbert - 1913 - 436 páginas
...looked upon as the modified descendants of bygone organic forms. As AR Wallace has expressed it : " Every species has come into existence coincident both in space and time with a pre-existing and closely allied species." The breaking up of biological regions into distinct, separate areas may... | |
| Nils von Hofsten - 1916 - 178 páginas
...Deszendenztheorie bezeichnet werden kann. WALLACE formuliert das von ihm festgestellte Gesetz folgendermaßen: „Every species has come into existence coincident...time with a pre-existing closely allied species". Wie dachte er sich nun die „Verbindung" zwischen den Arten? Er spricht mehrmals ausdrücklich von... | |
| Samuel Jackson Holmes - 1926 - 470 páginas
...significance that closely allied forms tend to cluster in the same general region. As Wallace remarks, " Every species has come into existence coincident both in space and time with a preexisting and closely allied species." This is, of course, what we should expect if species were derived the... | |
| Samuel Jackson Holmes - 1926 - 476 páginas
...significance that closely allied forms tend to cluster in the same general region. As Wallace remarks, " Every species has come into existence coincident both in space and time with a preexisting and closely allied species." This is, of course, what we should expect if species were derived the... | |
| Geological Society of London - 1856 - 714 páginas
...renewal of the forms of life in successive geological epochs, he has deduced the following law : — Every species has come into existence .coincident...and time with a pre-existing closely allied species. The question is one of great importance, and deserving the careful investigation of every geologist... | |
| Charles Darwin, Frederick Burkhardt - 1985 - 726 páginas
...word variety for species) from that lately advanced in an ingenious paper by Mr. Wallace, in which he concludes, that "every species has come into existence...time with a pre-existing closely allied species.'" CD refers to Wallace '8554 Malthus 1826. 5 Hooker 1859 was the first scientific work to discuss CD's... | |
| M. J. S. Rudwick - 1985 - 303 páginas
...Wallace argued that the facts of geographical and geological distribution of species suggested the 'law' that "Every species has come into existence coincident...time with a pre-existing closely allied species". Very probably he was already convinced that some kind of trans-specific evolution was causally responsible... | |
| Janet Oppenheim - 1985 - 536 páginas
...comprehensive law to elucidate all the facts of change in the organic world. Wallace stated it simply: "Every species has come into existence coincident...and time with a preexisting closely allied species." The law was designed to explain the geographical distribution of animal and vegetable life over the... | |
| Ernst Mayr - 1982 - 996 páginas
...the species by affinity is also geographical." And this observation leads him to the law: Evenspecies has come into existence coincident both in space and time with a pre-existing closely allied species. By stating either "in the same locality or in closely adjoining localities," Wallace obscured the strictly... | |
| Charles Darwin, Frederick Burkhardt - 1985 - 762 páginas
...distribution of animals and plants for many years. In his paper, he concluded that every species had come into existence coincident both in space and time with a preexisting closely allied species. CD scored Blyth's reference to the paper in the margin of the letter, but there is no indication when... | |
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