Origin of Species Variorum

→ by some to 1866

to 1859 1861

by some anatomists to 1869 1872

→ of the corolla 1859 1860 1861 1866 1869

OMIT 1872

→ the 1859 1860 1861 1866 1869

with birds the 1872

→ of 1859 1860 1861 1866

and form of 1869 1872

→ of correlation is very 1859 1860 1861 1866

of correlation is 1869

is 1872

→ in cats the 1866 1869

the 1859 1860 1861 1872

→ between complete whiteness with blue eyes and deafness, 1866 1869

between blue eyes and deafness 1859 1860 1861

OMIT 1872

→ or between 1866 1869

in cats, and 1859 1860 1861

in cats between complete whiteness and blue eyes with deafness, or between 1872

→ or in pigeons between their 1866 1869 1872

the 1859 1860 1861

→ and between 1866

in pigeons, and 1859 1860 1861

or between 1869 1872

an allied

a like

manner: we see this in the right and left sides of the body varying in the same manner; in the front and hind legs, and even in the jaws and limbs, varying together, for the lower jaw is believed →by some to be homologous with the limbs. These tendencies, I do not doubt, may be mastered more or less completely by natural

selection;

selection:

thus a family of stags once existed with an antler only on one side; and if this had been of any great use to the

breed

breed,

it might probably have been rendered permanent by

~~natural~~

natural

selection.

Homologous parts, as has been remarked by some authors, tend to cohere; this is often seen in monstrous

plants:

plants;

and nothing is more common than the union of homologous parts in normal structures, as

in the

the

union of the petals →of the corolla into a tube. Hard parts seem to affect the

form

forms

of adjoining soft parts; it is believed by some authors that →the diversity in the shape of the pelvis

~~in birds~~

in birds

causes the remarkable diversity in the shape of their kidneys. Others believe that the shape of the pelvis in the human mother influences by pressure the shape of the head of the child. In snakes, according to Schlegel, the

form

shape

of the body and the manner of swallowing determine the position →of several of the most important viscera.

The nature of the bond →of correlation is very frequently quite obscure. M. Is. Geoffroy St. Hilaire has forcibly remarked, that certain malconformations

~~very~~

very

frequently, and that others

rarely,

rarely

co-exist,

coexist,

without our being able to assign any reason. What can be more singular than →in cats the relation →between complete whiteness with blue eyes and deafness, →or between the tortoise-shell colour

with

and

the female sex; →or in pigeons between their feathered feet and skin

between

betwixt

the outer

toes

toes,

→and between the presence of more