| → is 1861 1866 1869 1872 |
| seems to me 1859 1860 |
|
| → is entirely 1861 1866 1869 |
| as we shall see in the next chapter, is certainly 1872 |
|
| → forms." We clearly see this if 1866 1869 |
| forms." We clearly see this if 1861 |
| forms." If 1872 |
|
| → recent and extinct species 1861 1866 1869 |
| species, recent and extinct, 1872 |
|
| → for in this case 1861 1866 1869 |
| OMIT 1872 |
|
| → in most cases 1861 1866 1869 |
| OMIT 1872 |
|
| → all known 1861 1866 |
| nearly all our existing species with extinct 1869 |
| together nearly all existing and extinct 1872 |
|
| → not having been effected by geology is the most obvious of the many objections which may be urged 1861 1866 |
| ought not to be expected; yet this has been repeatedly advanced as a most serious objection 1869 1872 |
|
| ↑ 1 blocks not present in 1861 1866 1869 1872; present in 1859 1860 |
| Geological research, though it has added numerous species to existing and extinct genera, and has made the intervals between some few groups less wide than they otherwise would have been, yet has done scarcely anything in breaking down the distinction between species, by connecting them together by numerous, fine, intermediate varieties; and this not having been effected, is probably the gravest and most obvious of all the many objections which may be urged against my views.
|
|
| → Hence it will 1859 1860 1861 1866 |
| It may 1869 1872 |
|
| → on the causes of the imperfection of the geological record under 1861 1866 1869 1872 |
| under 1859 1860 |
|
|
and such success
→is
improbable in the highest degree. |
|
| It has been asserted over and over again, by writers who believe in the immutability of species, that geology
no linking forms. This
→is entirely
erroneous. As
Lubbock has
remarked,
species is a link between other allied
→forms." We clearly see this if
we take a genus having a score of
→recent and extinct species
and destroy four-fifths of
→for in this case
no one
that the remainder will stand much more distinct from each other. If the extreme forms in the genus happen to have been thus destroyed, the genus itself
→in most cases
will stand more distinct from other allied genera. The camel and the pig, or the horse and the tapir, are now obviously very distinct forms; but if we add the several fossil quadrupeds which have already been discovered to the families including the camel and pig, these forms become joined by links not extremely wide apart. The chain of linking forms does not, however, in these cases, or in any case, run straight from the one living form to the other, but takes a circuitous sweep through the forms which lived during
ages. What geological research has not
is the former existence of infinitely numerous gradations, as fine as existing varieties, connecting
→all known
species.
this
→not having been effected by geology is the most obvious of the many objections which may be urged
against my views. ↑
|
|
→Hence it will
be worth while to sum up the
→on the causes of the imperfection of the geological record under
an imaginary illustration. The Malay Archipelago is
about the size of Europe from the North Cape to the Mediterranean, and from Britain to Russia; and therefore equals all the geological
|
