 | John Hutton Balfour - 1851 - 670 էջ
...— No classification can be made unless themeaningofthe term species is defined. By species, then, are meant so many individuals as are presumed to have...the world, and to have been perpetuated ever since. A species embraces individuals which resemble each other more closely than they do any other plant,... | |
 | William Withering - 1863 - 518 էջ
...distinguish races from species, or varieties from races. A modern luminary says: — " By species, then, are meant so many individuals as are presumed to have...the world, and to have been perpetuated ever since." I am unable to find a meaning to this statement; and if "no classification can be made unless the meaning... | |
 | John Hutton Balfour - 1863 - 740 էջ
...classification can be made unless the meaning of the • term species is defined. By species, then, are meant so many individuals as are presumed to have...the world, and to have been perpetuated ever since. A species embraces individuals which resemble each other more closely than they do any other plant,... | |
 | James Ross - 1874 - 142 էջ
...creation was postulated to account for it. In accordance with this view, species were defined as " so many individuals as are presumed to have been formed...the world, and to have been perpetuated ever since," A definition like this carries its condemnation upon its face, composed as it is mainly of hypothetical... | |
 | James Michell Winn - 1878 - 106 էջ
...text-book of Botany,1 which was in our hands when I was a student, informed us that " by species is meant so many individuals as are presumed to have been formed at the creation of the world and to r Balfour (John Hutton). "A Manual of Botany." New Edit. Edin., 1863, p. 305. have been perpetuated... | |
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No classification can be made unless the meaning of the • term species is defined. By species, then, are meant so many individuals as are presumed to have been formed at the creation of the world, and to have been perpetuated ever since. 