Origin of Species Variorum

→ it does not appear probable would 1859 1860 1861 1866 1869

would not probably have 1872

→ marks 1859 1860 1861 1866

the several marks 1869 1872

→ distinct breeds of diverse colours 1859 1860 1861 1866

distinct breeds of distinct colours 1869

differently coloured breeds 1872

→ (either from reversion or from analogous variation) which already occur in some 1859 1860 1861 1866

(either from reversion or from analogous variation) which already are present in 1869

which are already present in 1872

→ A considerable part of the 1859 1860 1861 1866 1869

The 1872

→ recognising a variable species in our systematic works, is 1859 1860 1861

recognising in our systematic works a variable species, is 1866 1869

distinguishing variable species is largely 1872

→ some of the 1859 1860 1861 1866

OMIT 1869 1872

→ must be doubtfully 1859 1860 1861 1866

can only doubtfully be 1869 1872

→ either varieties or 1859 1860 1861 1866

OMIT 1869 1872

→ forms 1859 1860 1861 1866 1869

closely allied forms 1872

→ is 1859 1860 1861 1866 1869

of analogous variations is 1872

→ of an important and uniform nature occasionally varying 1859 1860 1861 1866

of an important and generally uniform nature occasionally varying 1869

which are generally constant in character, but which occasionally vary 1872

→ character of the 1859 1860 1861 1866 1869

OMIT 1872

was not feather-footed or turn-crowned, we could not have told, whether

such

these

characters in our domestic breeds were reversions or only analogous variations; but we might have inferred that the

blue colour

blueness

was a case of

reversion

reversion,

from the number of the markings, which are correlated with

this

the blue

tint, and which →it does not appear probable would all

appeared

appear

together from simple variation. More especially we might have inferred this, from the blue colour and →marks so often appearing when →distinct breeds of diverse colours are crossed. Hence,

although

though

under nature it must generally be left doubtful, what cases are reversions to

a formerly

formerly

an anciently

existing

characters,

character,

and what are new but analogous variations, yet we ought, on

our

theory, sometimes to find the varying offspring of a species assuming characters →(either from reversion or from analogous variation) which already occur in some other members of the same group. And this undoubtedly is the

case.

case

~~nature.~~

nature.

→A considerable part of the difficulty in →recognising a variable species in our systematic works, is due to

the

its

varieties mocking, as it were, →some of the other species of the same genus. A considerable catalogue, also, could be given of forms intermediate between two other forms, which themselves →must be doubtfully ranked as →either varieties or species; and this shows, unless all these →forms be considered as independently created species, that

they

the

have

one

in varying

~~has~~

has

assumed some of the characters of the

others.

~~produce~~

~~the~~

~~intermediate~~

forms.

~~form.~~

form.

But the best evidence →is afforded by parts or organs →of an important and uniform nature occasionally varying so as to

resemble,

acquire,

in some degree, the →character of the same part or organ in an allied species. I have collected a long list of such cases; but here, as before, I lie under

the

great disadvantage

not being able to give them. I can only repeat that