Origin of Species Variorum

→ diving Hymenoptera, and petrels 1866 1869 1872

petrels 1859 1860 1861

→ populi, 1866 1869

populi , 1861 1872

→ perfect and complex, 1869

very imperfect and simple, 1859 1860 1861

imperfect and simple, 1866

complex and perfect can be shown to exist, 1872

→ can be shown to exist, 1869

can be shown to exist; 1859 1860 1861 1866

as is certainly the case; 1872

→ as is certainly the case; if 1869

if 1859 1860 1861 1866 1872

→ ever slightly varies, 1869

does vary ever so slightly, 1859 1860 1861

does vary ever so slightly 1866

ever varies 1872

→ should ever be 1869

or modification in the organ be ever 1859 1860 1861 1866

should be 1872

of one

belonging to

another type; but this seems to me only

re- stating

re-stating

restating

the fact in dignified language. He who believes in the struggle for existence and in the principle of natural selection, will acknowledge that every organic being is constantly endeavouring to increase in numbers; and that if any one

being vary

being varies

varies

ever so little, either in habits or structure, and thus

gain

gains

an advantage over some other inhabitant of the

same country,

country,

it will seize on the place of that inhabitant, however different

that

may be from its own place. Hence it will cause him no surprise that there should be geese and frigate-birds with webbed feet,

either

....

living on the dry land

and

or most

rarely alighting on the water; that there should be long-toed

corncrakes

corncrakes,

living in meadows instead of in swamps; that there should be woodpeckers where

hardly

not

a tree grows; that there should be diving

thrushes,

thrushes

and →diving Hymenoptera, and petrels with the habits of auks.

Organs

extreme

perfection

Perfection

and

complication .—

complication. —

Complication .

Complication.

To suppose that the

eye,

eye

with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest

possible

....

degree. When it was first said that the sun stood still and the world turned round, the common sense of mankind declared the doctrine false; but the old saying of Vox → populi, vox

Dei ,

Dei,

as every philosopher knows,

can never

cannot

be trusted in science.

Yet

....

reason

Reason

tells me, that if numerous gradations from

perfect

simple

imperfect

and

complex

imperfect

simple

eye to one →perfect and complex, each grade being useful to its possessor, →can be shown to exist, →as is certainly the case; if further, the eye →ever slightly varies, and the variations be inherited,

which

certainly

likewise certainly

the case; and if

any

such

variation

variations

→should ever be useful to

any

animal under changing