| → 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 |
| 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 |
|
| → 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 |
|
| → 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 |
| 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 |
|
| → 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 |
| 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 |
|
| → 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 |
| 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 |
|
| → severe 1859 1861 1866 |
| varied and therefore less severe 1869 |
| varied, and therefore less severe, 1872 |
|
| → up the circumstances favourable and unfavourable to natural selection, 1859 1860 1861 1866 |
| up the circumstances favourable and unfavourable for the production of new species through natural selection, 1869 |
| up, 1872 |
|
| → permits. 1859 1860 1861 1866 1869 |
| permits, the circumstances favourable and unfavourable for the production of new species through natural selection. 1872 |
|
| → looking to the future, 1859 1860 |
| OMIT 1861 1866 1869 1872 |
|
| → and which consequently will exist for long periods in a broken condition, will be 1859 |
| and which consequently will exist for long periods in a broken condition, is 1860 |
| and which consequently has existed for long periods in a broken condition, has been 1861 1866 |
| will have been 1869 1872 |
|
| → long 1859 1860 1861 1866 |
| for a long time 1869 1872 |
|
| → will first have 1859 |
| first 1860 1861 1866 |
| OMIT 1869 1872 |
|
| → at this period 1859 1860 1861 1866 |
| will have been 1869 1872 |
|
| → species will thus be 1859 1860 |
| species will thus have been 1861 1866 |
| new species will have been 1869 1872 |
|
