Comparison with 1872 |
|
fitted for gliding through the air, now connect the Galeopithecus with the other
Insectivora, Insectivora, 1872 | Lemuridæ, 1859 1860 1861 1866 1869 |
yet I can see
no difficulty in supposing that such links formerly existed, and that each
was developed in was developed in 1872 |
had been formed by 1859 1860 1861 1866 1869 |
the same
manner manner 1872 | steps 1859 1860 1861 1866 1869 |
as
with with 1872 | in 1859 1860 1861 1866 1869 |
the
...OMIT 1872 |
case of the 1859 1860 1861 1866 1869 |
less perfectly gliding squirrels;
....... 1872 | and that 1859 1860 1861 1866 1869 |
each grade of structure
having been having been 1872 | had been 1859 | was 1860 1861 1866 1869 |
useful to its possessor. Nor can I see any insuperable difficulty in further believing
....... 1872 | it possible 1859 1860 1861 1866 1869 |
that the
membrane connected membrane connected 1872 | membrane-connected 1859 1860 1861 1866 1869 |
fingers and
fore-arm fore-arm 1859 1872 | forearm 1860 1861 1866 1869 |
of the Galeopithecus might
have been have been 1872 | be 1859 1860 1861 1866 1869 |
greatly lengthened by natural
selection. selection. 1872 | selection; 1859 1860 1861 1866 1869 |
and this, as far as the organs of flight are concerned, would
have converted the animal have converted the animal 1872 |
convert it 1859 1860 1861 1866 1869 |
into a bat. In
certain bats in which certain bats in which 1872 |
bats which have 1859 1860 1861 1866 |
certain bats which have 1869 |
the wing-membrane
extends extends 1872 | extended 1859 1860 1861 1866 1869 |
from the top of the shoulder to the
tail tail 1872 | tail, 1859 1860 1861 1866 1869 |
and includes and includes 1872 | including 1859 1860 1861 1866 1869 |
the hind-legs, we perhaps
see see 1859 1860 1861 1866 1872 |
yet see actual 1869 |
traces of an apparatus originally constructed
for gliding through the air rather than for flight. |
|
If about a dozen genera of birds
were to were to 1872 | had 1859 1860 1861 1866 1869 |
become
extinct, extinct, 1872 | extinct 1859 1860 1861 1866 1869 |
...OMIT 1872 |
or were unknown, 1859 1860 1861 1866 1869 |
who would have ventured to have
surmised
that birds might have existed which used their wings solely as flappers, like the logger-headed duck (Micropterus of Eyton); as fins in the water and
as front-legs as front-legs 1872 | front legs 1859 1860 1861 1866 1869 |
on the land, like the penguin; as sails, like the ostrich; and functionally for no purpose, like the Apteryx. Yet the structure of each of these birds is good for it, under the conditions of life to which it is exposed, for each has to live by a struggle; but it is not necessarily the best possible under all possible conditions. It must not be inferred from these remarks that any of the grades of wing-structure here alluded to, which perhaps may all
be the result of be the result of 1872 |
have resulted from 1859 1860 1861 1866 1869 |
disuse, indicate the
....... 1872 | natural 1859 1860 1861 1866 1869 |
steps by which birds
actually actually 1872 | have 1859 1860 1861 1866 1869 |
acquired their perfect power of flight; but they
serve serve 1872 | serve, 1859 1860 1861 1866 1869 |
to show what diversified means of transition are at least to show what diversified means of transition are at least 1872 |
at least, to show what diversified means of transition are 1859 1860 1861 1866 1869 |
possible. |
|
Seeing that a few members of such water-breathing classes as the Crustacea and Mollusca are adapted to
|
fitted for gliding through the air, now connect the Galeopithecus with the other
Lemuridæ, Lemuridæ, 1859 1860 1861 1866 1869 | Insectivora, 1872 |
yet
there is there is 1869 1872 |
I can see 1859 |
I see 1860 1861 1866 |
no difficulty in supposing that such links formerly existed, and that each
had been formed by had been formed by 1859 1860 1861 1866 1869 |
was developed in 1872 |
the same
steps steps 1859 1860 1861 1866 1869 | manner 1872 |
as
in in 1859 1860 1861 1866 1869 | with 1872 |
the
case of the case of the 1859 1860 1861 1866 1869 |
OMIT 1872 |
less perfectly gliding squirrels;
and that and that 1859 1860 1861 1866 1869 | and that 1872 |
each grade of structure
was was 1860 1861 1866 1869 | had been 1859 | having been 1872 |
useful to its possessor. Nor can I see any insuperable difficulty in further believing
it possible it possible 1859 1860 1861 1866 1869 | it possible 1872 |
that the
membrane-connected membrane-connected 1859 1860 1861 1866 1869 | membrane connected 1872 |
fingers and
forearm forearm 1860 1861 1866 1869 | fore-arm 1859 1872 |
of the Galeopithecus might
be be 1859 1860 1861 1866 1869 | have been 1872 |
greatly lengthened by natural
selection; selection; 1859 1860 1861 1866 1869 | selection. 1872 |
and this, as far as the organs of flight are concerned, would
convert it convert it 1859 1860 1861 1866 1869 |
have converted the animal 1872 |
into a bat. In
certain bats which have certain bats which have 1869 |
bats which have 1859 1860 1861 1866 |
certain bats in which 1872 |
the wing-membrane
extended extended 1859 1860 1861 1866 1869 | extends 1872 |
from the top of the shoulder to the
tail, tail, 1859 1860 1861 1866 1869 | tail 1872 |
including including 1859 1860 1861 1866 1869 | and includes 1872 |
the hind-legs, we perhaps
yet see actual yet see actual 1869 |
see 1859 1860 1861 1866 1872 |
traces of an apparatus originally
fitted fitted 1869 1872 | constructed 1859 1860 1861 1866 |
for gliding through the air rather than for flight. |
|
If about a dozen genera of birds
had had 1859 1860 1861 1866 1869 | were to 1872 |
become
extinct extinct 1859 1860 1861 1866 1869 | extinct, 1872 |
or were unknown, or were unknown, 1859 1860 1861 1866 1869 |
OMIT 1872 |
who would have ventured to
....... 1861 1866 1869 1872 | have 1859 1860 |
surmise surmise 1861 1866 1869 1872 | surmised 1859 1860 |
that birds might have existed which used their wings solely as flappers, like the logger-headed duck (Micropterus of Eyton); as fins in the water and
front legs front legs 1859 1860 1861 1866 1869 | as front-legs 1872 |
on the land, like the penguin; as sails, like the ostrich; and functionally for no purpose, like the
Apteryx? Apteryx? 1861 1866 1869 1872 | Apteryx. 1859 1860 |
Yet the structure of each of these birds is good for it, under the conditions of life to which it is exposed, for each has to live by a struggle; but it is not necessarily the best possible under all possible conditions. It must not be inferred from these remarks that any of the grades of wing-structure here alluded to, which perhaps may all
have resulted from have resulted from 1859 1860 1861 1866 1869 |
be the result of 1872 |
disuse, indicate the
natural natural 1859 1860 1861 1866 1869 | natural 1872 |
steps by which birds
have have 1859 1860 1861 1866 1869 | actually 1872 |
acquired their perfect power of flight; but they
serve, serve, 1859 1860 1861 1866 1869 | serve 1872 |
at least, to show what diversified means of transition are at least, to show what diversified means of transition are 1859 1860 1861 1866 1869 |
to show what diversified means of transition are at least 1872 |
possible. |
|
Seeing that a few members of such water-breathing classes as the Crustacea and Mollusca are adapted to
|