 | 1859 - 578 páginas
...any one time, answers others. The extreme imperfection of our geological records answers others. 6. Another principle, which may be called the principle...invariably to as many genera and families as species. We can understand the meaning of this fact amongst the higher animals, whose habits we understand.... | |
 | Charles Darwin - 1887 - 586 páginas
...time answers others. The extreme imperfections of our geological records answers others. VI. One other principle, which may be called the principle of divergence,...in the many generic forms in a square yard of turf (I have counted twenty species belonging to eighteen genera), or in the plants and insects, on any... | |
 | Charles Darwin - 1887 - 570 páginas
...time answers others. The extreme imperfections of our geological records answers others. VI. One other principle, which may be called the principle of divergence,...in the many generic forms in a square yard of turf (I have counted twenty species belonging to eighteen genera), or in the plants and insects, on any... | |
 | Charles Darwin - 1887 - 588 páginas
...time answers others. The extreme imperfections of our geological records answers others. VI. One other principle, which may be called the principle of divergence,...in the many generic forms in a square yard of turf (I have counted twenty species belonging to eighteen genera), or in the plants and insects, on any... | |
 | William Parker Cutler - 1888 - 1034 páginas
...time answers others. The extreme imperfections of our geological records answers others. VI. One other principle, which may be called the principle of divergence,...in the many generic forms in a square yard of turf (I have counted twenty species belonging to eighteen genera), or in the plants and insects, on any... | |
 | James Hutchison Stirling - 1894 - 392 páginas
...plot of ground if sown, not with " a single variety of wheat," but with " a mixture of varieties." " The same spot will support more life if occupied by very diverse forms," says Mr. Darwin himself (it 124). Now, in such illustrations, the " superior yield," the " more life,"... | |
 | Charles Darwin - 1896 - 580 páginas
...time answers others. The extreme imperfections of our geological records answers others. VI. One other principle, which may be called the principle of divergence,...in the many generic forms in a square yard of turf (I have counted twenty species belonging to eighteen genera), or in the plants and insects, on any... | |
 | Charles Darwin - 1897 - 598 páginas
...extreme imperfections of our geological records answers others. VI. One other principle, which maybe called the. principle of divergence, plays, I believe,...in the many generic forms in a square yard of turf (I have counted twenty species" belonging to eighteen genera), or in the plants and insects, on any... | |
 | Frank Humphreys Storer - 1897 - 700 páginas
...better results are to be expected when clover is admixed with the grasses, since, as Darwin puts it, "The same spot will support more life if occupied by very diverse forms." " We see this, "he says, " in the many generic forms in a square yard of turf (l have counted 20 species belonging... | |
 | 1902 - 584 páginas
...at one time, answers others. The extreme imperfection of our geological records answers others. 6. Another principle, which may be called the principle...invariably to as many genera and families as species. We can understand the meaning of this fact amongst the higher animals, whose habits we understand.... | |
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The same spot will support more life if occupied by very diverse forms. We see this in the many generic forms in a square yard of turf... 
