 | Alfred Russel Wallace - 1876 - 602 lehte
...affecting their perpetuation and increase in each locality. If these considerations are well founded, the objections of those who study insects or molluscs,...true for their departments of nature — cannot be VOL. L— 6 maintained. For they will find, that a careful consideration of the exceptional means of... | |
 | ALFRED RUSSEL WALLACE - 1876 - 566 lehte
...affecting their perpetuation and increase in each locality. If these considerations are well founded, the objections of those who study insects or molluscs,...true for their departments of nature— cannot be VOL. I.— 6 maintained. For they will find, that a careful consideration c the exceptional means of... | |
 | 1878 - 932 lehte
...by their exceptional means of dispersion or by special conditions affecting their perpetuation and increase in each locality." " If these considerations...objections of those who study insects or molluscs, for example,—that our regions are not true for their departments of nature—cannot be maintained. For... | |
 | Joel Asaph Allen - 1878 - 174 lehte
...exceptional means of dispersion or by special conditions affecting their perpetuation and increase iu each locality." " If these considerations are well...objections of those who study insects or molluscs, lor example, — that our regions are not true for their departments of nature — cannot be maintained.... | |
 | Biological Society of Washington - 1882 - 502 lehte
...by their exceptional means of dispersion or by special conditions affecting their perpetuation and increase in each locality." "If these considerations...divergences from the normal distribution of higher animals. "f Mr. Allen recalls that he had in 1871 "claimed, in accordance with the views of Humboldt, Wagner,... | |
 | Biological Society of Washington - 1882 - 506 lehte
...by their exceptional means of dispersion or by special conditions affecting their perpetuation and increase in each locality." " If these considerations...molluscs, — for example, that our regions are not trup for their departments of nature, — cannot be maintained. For they will find, that a careful... | |
 | American Museum of Natural History - 1892 - 1252 lehte
...affecting their perpetuation and increase in each locality. If these considerations are well founded, the objections of those who study insects or molluscs,...divergences from the normal distribution of higher animals."1 While the divisions of North America, as set forth in the present paper, are presented from... | |
 | Biological Society of Washington - 1885 - 204 lehte
...by their exceptional means of dispersion or by special conditions affecting their perpetuation and increase in each locality." "If these considerations...divergences from the normal distribution of higher animals, "f Mr. Allen recalls that he had in 1871 "claimed, in accordance with the views of Humboldt, Wagner,... | |
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If these considerations are well founded," he continues, " the objections of those who study insects or molluscs, — for example, that our regions are not true for their departments of nature, — cannot be maintained. For they will find, that a careful... 