↑ 1 blocks not present in 1866 1869 1872; present in 1859 1860 1861 |
Hence more new places will be formed, and the competition to fill them will be more severe, on a large than on a small and isolated area.
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→ OMIT 1872 |
owing to oscillations of level, 1859 1860 1861 |
owing to former oscillations of level, 1866 1869 |
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→ owing to former oscillations of level, have 1872 |
have recently 1859 1860 1861 |
have 1866 1869 |
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→ the greatest number of 1872 |
most 1859 1860 1861 1866 1869 |
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→ In accordance with this view, we 1872 |
We 1859 1860 1861 1866 1869 |
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→ OMIT 1872 |
on these views, 1859 1860 1861 1866 1869 |
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→ productions of the smaller 1872 |
smaller 1859 1860 1861 1866 1869 |
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→ OMIT 1872 |
have formerly yielded, and apparently are 1859 1860 1861 1866 |
are 1869 |
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→ islands. 1859 1861 1866 1869 1872 |
islands. On a small island, the race for life will have been less severe, and there will have been less modification and less exter- mination. 1860 |
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→ On a small island, the race for life will have been less severe, and there will have been less modification and less extermination. 1861 1866 1869 1872 |
On a small island, the race for life will have been less severe, and there will have been less modification and less exter- mination. 1859 |
Hence, perhaps, it comes that the flora of Madeira, according to Oswald Heer, resembles the extinct tertiary flora of Europe. 1860 |
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→ Hence, we can understand how it is that the flora of Madeira, according to Oswald Heer, resembles to a certain extent the extinct tertiary flora of Europe. 1872 |
Hence, perhaps, it comes that the flora of Madeira, according to Oswald Heer, resembles the extinct tertiary flora of Europe. 1859 1861 1866 |
All fresh-water basins, taken together, make a small area compared with that of the sea or of the land; and, consequently, the competition between fresh-water productions will have been less severe than elsewhere; new forms will have been more slowly formed, and old forms more slowly exterminated. 1860 |
Hence, perhaps, it is that the flora of Madeira, according to Oswald Heer, resembles the extinct tertiary flora of Europe. 1869 |
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→ All fresh-water basins, taken together, make a small area compared with that 1859 1861 1866 1869 1872 |
And it is in fresh water that we find seven genera of Ganoid fishes, remnants of a once preponderant order: and in fresh water we find some 1860 |
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→ sea or of the land. Consequently, the competition between fresh-water productions will have been less severe than elsewhere; new forms will have been then more slowly produced, and old forms more slowly exterminated. 1872 |
sea or of the land; and, consequently, the competition between fresh-water productions will have been less severe than elsewhere; new forms will have been more slowly formed, and old forms more slowly exterminated. 1859 1861 1866 1869 |
most anomalous forms now known in the world, as the Ornithorhynchus and Lepidosiren, which, like fossils, connect to a certain extent orders now widely separated in the natural scale. 1860 |
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→ And it is in fresh-water basins that we find seven genera of Ganoid fishes, remnants of a once preponderant order: and in fresh water we find some of the most 1872 |
And it is in fresh water that we find seven genera of Ganoid fishes, remnants of a once preponderant order: and in fresh water we find some of the most 1859 1861 1866 1869 |
These 1860 |
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→ now known in the world, as the Ornithorhynchus and Lepidosiren, which, like fossils, connect to a certain extent orders at present widely sundered in the natural scale. 1872 |
now known in the world, as the Ornithorhynchus and Lepidosiren, which, like fossils, connect to a certain extent orders now widely separated in the natural scale. 1859 1861 1866 |
may almost be called living fossils; they have endured to the present day, from having inhabited a confined area, and from having thus been exposed to less severe competition. 1860 |
now known in the world, as the Ornithorhynchus and Lepidosiren, which, like fossils, connect to a certain extent orders at present widely separated in the natural scale. 1869 |
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