Origin of Species Variorum

→ class. 1859 1860 1861 1866 1869

great class or kingdom. 1872

→ germinal vesicles, their 1859 1860

OMIT 1861 1866 1869 1872

→ reproduction. 1859 1860

their liability to injurious influences. 1861 1866 1869 1872

↑ 1 blocks not present in 1859 1860 1869 1872; present in 1861 1866

In all organic beings the union of a male and female elemental cell seems occasionally to be necessary for the production of a new being.

→ I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended 1859 1860

on the principle of natural selection with divergence of character, it does not seem incredible that, 1861 1866 1869 1872

→ one 1859 1860

such low and intermediate form, both animals and plants may have been developed; and, if we admit this, we must admit that all the organic beings which have ever lived on this earth may have descended from some one 1861 1866

such low and intermediate form, both animals and plants may have been developed; and, if we admit this, we must likewise admit that all the organic beings which have ever lived on this earth may be descended from some one 1869 1872

→ breathed. 1859

breathed by the Creator. 1860

OMIT 1861 1866 1869 1872

→ entertained 1859

advanced by me 1860 1861 1866 1869 1872

→ on the origin of species, 1859

and by Mr. Wallace in the Linnean Journal, 1860 1861 1866 1869

and by Mr. Wallace, 1872

→ are 1859

on the origin of species are 1860 1861 1866 1869 1872

→ in essence a 1859 1860 1861 1866

a true 1869 1872

embraces all the members of the same →class. I believe that animals

are

have

descended from at most only four or five progenitors, and plants from an equal or lesser number.

Analogy would lead me one step

farther,

further,

namely, to the belief that all animals and plants

are

have

descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in

common,—

common,

in their chemical composition, their →germinal vesicles, their cellular structure,

~~and~~

and

their laws of

growth,

growth

and →reproduction. We see this even in so trifling a

fact

circumstance

as that the same poison often similarly affects plants and animals; or that the poison secreted by the

gallfly

gall-fly

produces monstrous growths on the wild rose or oak-tree. ↑

Therefore,

Therefore

→I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some →one primordial

form.

~~into~~

~~which~~

~~life~~

~~was~~

~~first~~

→breathed.

When the views →entertained in this

volume,

volume

→on the origin of species, or when analogous views →are generally admitted, we can dimly foresee that there will be a considerable revolution in natural history. Systematists will be able to pursue their labours as at present; but they will not be incessantly haunted by the shadowy doubt whether this or that form be →in essence a species.

This,

This

I feel

sure

sure,

and I speak after experience, will be no slight relief. The endless disputes whether or not some fifty species of British brambles are

good

true

species will cease. Systematists will have only to decide (not that this will be easy) whether any form be sufficiently constant and distinct from other forms, to be capable of definition; and if definable, whether the differences be sufficiently important to deserve a specific name. This latter point will become a far more essential

~~con-~~

con-