See page in:
1859
1860
1861
1866
1869
1872

Compare with:
1859
1861
1866
1869
1872

of their descendants, may be supposed to be 1859 1860 1861 1866
OMIT 1869 1872

to be as fine as 1859 1860 1861 1866
not greater than 1869 1872

or these parents from their ancient and unknown progenitor. 1859 1860 1861 1866
and descendants. 1869 1872

on 1859 1860 1861 1866
would be natural; for, on 1869 1872

from A, or from I, 1859 1860 1861 1866
for instance, from A, 1869 1872

We shall certainly 1859 1860
We shall assuredly 1861 1866
Assuredly we shall 1869 1872

many descendants from 1859 1860 1861 1866
descendants from 1869
descendants from any 1872

although having few characters in common, 1859 1860 1861
although having but few characters in common, 1866
OMIT 1869 1872

link in each branch and sub-branch of their descendants, may be supposed to be still alive; and the links to be as fine as those between
existing
the finest
varieties. In this case it would be quite impossible to give
any
any
definitions
definition
by which the several members of the several groups could be distinguished from their more immediate
parents
parents;
or these parents from their ancient and unknown progenitor. Yet the
natural
natural
arrangement in the diagram would still hold
good
good;
and
and,
on the principle of inheritance, all the forms
descended,
descended
from A, or from I, would have something in common. In a tree we can
distinguish
specify
this or that branch, though at the actual fork the two unite and blend together. We could not, as I have said, define the several groups; but we could pick out types, or forms, representing most of the characters of each group, whether large or small, and thus give a general idea of the value of the differences between them. This is what we should be driven to, if we were ever to succeed in collecting all the forms in any
one class
class
which have lived throughout all time and space. We shall certainly never succeed in making so perfect a collection: nevertheless, in certain classes, we are tending
towards
in
this
end;
direction;
and Milne Edwards has lately insisted, in an able paper, on the high importance of looking to types, whether or not we can separate and define the groups to which such types belong.
Finally, we have seen that natural selection, which
follows
results
from the struggle for existence, and which almost inevitably
leads to
induces
extinction and divergence of character in the many descendants from one
dominant
dominant
parent-species, explains that great and universal feature in the affinities of all organic beings, namely, their
sub-ordination
subordination
in group under group. We use the element of descent in classing the individuals of both sexes and of all
ages
ages,
although having few characters in common,