Comparison with 1859 |
|
difficulty difficulty 1859 1860 1861 1866 | absence 1869 1872 |
of
our not discovering our not discovering 1859 1860 1861 1866 |
OMIT 1869 1872 |
innumerable transitional links between the species which
appeared appeared 1859 1860 1861 1866 | lived 1869 1872 |
at the commencement and close of each formation, pressed so hardly on my theory. |
On
On
1859 1860 1861 |
On
1866 1869 1872 |
the
the
1859 1860 1861 |
the
1866 1869 1872 |
sudden
sudden
1859 1860 1861 |
sudden
1866 1869 1872 |
appearance
appearance
1859 1860 1861 |
Appearance
1866 1869 1872 |
of
of
1859 1860 1861 |
of
1866 1869 1872 |
whole
whole
1859 1860 1861 |
whole
1866 1869 1872 |
groups
groups
1859 1860 1861 |
Groups
1866 1869 1872 |
of
of
1859 1860 1861 |
of
1866 1869 1872 |
Allied
Allied
1859 1860 |
allied
1861 |
allied
1866 1869 1872 |
Species
.—
Species
.—
1859 1860 1861 |
Species
. 1866 1869 1872 |
|
The abrupt manner in which whole groups of species suddenly appear in certain formations, has been urged by several
palæontologists, palæontologists, 1859 | palæontologists— 1860 1861 1866 1869 1872 |
for instance, by Agassiz, Pictet, and
by none more forcibly than by Professor Sedgwick, by none more forcibly than by Professor Sedgwick, 1859 |
by none more forcibly than by Professor Sedgwick— 1860 |
Sedgwick— 1861 1866 1869 1872 |
as a fatal objection to the belief in the transmutation of species. If numerous species, belonging to the same genera or families, have really started into life
all all 1859 1860 | all 1861 1866 1869 1872 |
at once, the fact would be fatal to the theory of descent with slow modification
through natural selection. For the development of
a group of forms, all of which have
descended from some one progenitor, must have been an extremely slow process; and the
progenitors progenitors 1859 1860 1861 1866 1872 | progenitors, 1869 |
must have lived long ages
before their modified descendants. But we continually
over-rate over-rate 1859 1860 1861 | overrate 1866 1869 1872 |
the perfection of the geological record, and falsely infer, because certain genera or families have not been found beneath a certain stage, that they did not exist before that stage. ↑1 blocks not present in 1859 1860; present in 1861 1866 1869 1872 | In all cases positive palæontological evidence may be implicitly trusted; negative evidence is worthless, as experience has so often shown.
|
We continually forget how large the world is, compared with the area over which our geological formations have been carefully examined; we forget that groups of species may elsewhere have long
existed existed 1859 1860 | existed, 1861 1866 1869 1872 |
and have slowly
multiplied multiplied 1859 1860 | multiplied, 1861 1866 1869 1872 |
before they invaded the ancient archipelagoes of Europe and
of of 1859 1860 | of 1861 1866 1869 1872 |
the United States. We do not make due allowance for the enormous
intervals of
time, time, 1859 1860 | time 1861 1866 1869 1872 |
which have
probably probably 1859 1860 | probably 1861 1866 1869 1872 |
elapsed between our consecutive formations,— longer perhaps in
some some 1859 | most 1860 | many 1861 1866 1869 1872 |
cases than the time
|
absence absence 1869 1872 | difficulty 1859 1860 1861 1866 |
of
...OMIT 1869 1872 |
our not discovering 1859 1860 1861 1866 |
innumerable transitional links between the species which
lived lived 1869 1872 | appeared 1859 1860 1861 1866 |
at the commencement and close of each formation, pressed so hardly on my theory. |
On
On
1866 1869 1872 |
On
1859 1860 1861 |
the
the
1866 1869 1872 |
the
1859 1860 1861 |
sudden
sudden
1866 1869 1872 |
sudden
1859 1860 1861 |
Appearance
Appearance
1866 1869 1872 |
appearance
1859 1860 1861 |
of
of
1866 1869 1872 |
of
1859 1860 1861 |
whole
whole
1866 1869 1872 |
whole
1859 1860 1861 |
Groups
Groups
1866 1869 1872 |
groups
1859 1860 1861 |
of
of
1866 1869 1872 |
of
1859 1860 1861 |
allied
allied
1866 1869 1872 |
Allied
1859 1860 |
allied
1861 |
Species
.
Species
. 1866 1869 1872 |
Species
.—
1859 1860 1861 |
|
The abrupt manner in which whole groups of species suddenly appear in certain formations, has been urged by several
palæontologists— palæontologists— 1860 1861 1866 1869 1872 | palæontologists, 1859 |
for instance, by Agassiz, Pictet, and
Sedgwick— Sedgwick— 1861 1866 1869 1872 |
by none more forcibly than by Professor Sedgwick, 1859 |
by none more forcibly than by Professor Sedgwick— 1860 |
as a fatal objection to the belief in the transmutation of species. If numerous species, belonging to the same genera or families, have really started into life
....... 1861 1866 1869 1872 | all 1859 1860 |
at once, the fact would be fatal to the theory of
descent with slow modification descent with slow modification 1859 1860 1861 1866 1869 |
evolution 1872 |
through natural selection. For the development
of of 1859 1860 1861 1866 1869 |
by this means of 1872 |
a group of forms, all of which
have have 1859 1860 1861 1866 1869 | are 1872 |
descended from some one progenitor, must have been an extremely slow process; and the
progenitors, progenitors, 1869 | progenitors 1859 1860 1861 1866 1872 |
must have lived long
ages ages 1859 1860 1861 1866 1869 | ages 1872 |
before their modified descendants. But we continually
overrate overrate 1866 1869 1872 | over-rate 1859 1860 1861 |
the perfection of the geological record, and falsely infer, because certain genera or families have not been found beneath a certain stage, that they did not exist before that stage. In all cases positive palæontological evidence may be implicitly trusted; negative evidence is worthless, as experience has so often shown. We continually forget how large the world is, compared with the area over which our geological formations have been carefully examined; we forget that groups of species may elsewhere have long
existed, existed, 1861 1866 1869 1872 | existed 1859 1860 |
and have slowly
multiplied, multiplied, 1861 1866 1869 1872 | multiplied 1859 1860 |
before they invaded the ancient archipelagoes of Europe and
....... 1861 1866 1869 1872 | of 1859 1860 |
the United States. We do not make due allowance for the
enormous enormous 1859 1860 1861 1866 1869 | enormous 1872 |
intervals of
time time 1861 1866 1869 1872 | time, 1859 1860 |
which have
....... 1861 1866 1869 1872 | probably 1859 1860 |
elapsed between our consecutive formations,— longer perhaps in
many many 1861 1866 1869 1872 | some 1859 | most 1860 |
cases than the time
|