Origin of Species Variorum

→ to find them still often 1859 1860 1861 1866 1869

often to find them still 1872

→ OMIT 1869 1872

the species of some other genus, are 1859 1860 1861 1866

→ are called generic characters; 1869 1872

characters; 1859 1860 1861 1866

→ in common I 1859 1860 1861 1866 1869

may be 1872

→ before the 1869 1872

a remote period, since that 1859 1860 1861 1866

→ species branched off 1869 1872

branching off of the species 1859 1860 1861 1866

→ In connection with the present subject, I will make only two other remarks. 1869

In connexion with the present subject, I will make only two other remarks. 1859 1860 1861 1866

I think it will be admitted by naturalists, without my entering on details, that secondary sexual characters are highly variable. 1872

→ I think it will 1859 1860 1861 1866 1869

It will also 1872

→ without my entering on details, that 1859 1860 1861 1866 1869

that species of the same group differ from each other more widely in their 1872

→ are very variable; I think it also will be admitted that species of the same group differ from each other more widely in their 1859 1860 1861 1866 1869

than in other parts of their organisation: compare, for instance, the amount of difference between the males of gallinaceous birds, in which 1872

can be given. But on the view

that

species

being

are

only strongly marked and fixed varieties, we might

surely

....

expect →to find them still often continuing to vary in those parts of their structure which

have

had

varied within a moderately recent period, and which

have

had

thus come to differ. Or to state the case in another

manner:—

manner: —

the points in which all the species of a genus resemble each other, and in which they differ from →OMIT

called

allied

generic

genera,

→are called generic characters; and these characters →in common I

attributed

attribute

in- heritance

inheritance

from a common progenitor, for it can rarely have happened that natural selection will have modified several

distinct species,

species,

fitted to more or less widely-different habits, in exactly the same manner: and as these so-called generic characters have been inherited from →before the period when the

species

several species

different species

first branched off from their common progenitor, and subsequently have not varied or come to differ in any degree, or only in a slight degree, it is not probable that they should vary at the present day. On the other hand, the points in which species differ from other species of the same

genus,

genus

are called specific characters; and as these specific characters have varied and come to differ

within

since

the period

when

the →species branched off from a common progenitor, it is probable that they should still often be in some degree

variable,—

variable, —

at least more variable than those parts of the

organization

organisation

which have for a very long period remained constant.

Secondary

Sexual

Characters

Variable .—

Variable .

→In connection with the present subject, I will make only two other remarks. →I think it will be

admitted

admitted,

→without my entering on details, that secondary sexual

characters,

characters

→are very variable; I think it also will be admitted that species of the same group differ from each other more widely in their