Origin of Species Variorum

→ all the members of the vertebrate 1866

each member of the vertebrate and articulate 1859 1860 1861

all the higher vertebrate 1869 1872

→ So it is with 1866 1869 1872

We see the same law in comparing 1859 1860 1861

→ in flowers during their early development, as well as in crustaceans and many other animals during their embryonic states, 1866

in embryonic crustaceans and in many other animals, and in flowers, 1859 1860 1861

during the early or embryonic stages of development in flowers, 1869 1872

→ that 1859 1860 1861 1866

as well as in crustaceans and many other animals, that 1869 1872

→ an early stage of growth 1859 1860 1861 1866

first 1869 1872

→ these facts 1859 1860 1861 1866 1869

the cases of serial homologies 1872

→ bone? 1859 1860 1861 1866 1869

bone, apparently representing vertebræ? 1872

→ birds and reptiles. 1866 1869 1872

birds. 1859 1860 1861

→ in the formation of 1859 1860 1861 1866

to form 1869 1872

→ purposes? 1859 1860 1861 1866 1869

purposes, namely flying and walking? 1872

→ satisfactorily 1859 1860 1861 1866

to a certain extent, 1872

OMIT 1869

homologous—

homologous with—

that

is,

correspond in number and in relative

connexion—

connexion with—

with the

the

elemental parts of a certain number of vertebræ. The anterior and posterior limbs in →all the members of the vertebrate classes are plainly homologous. →So it is with the wonderfully complex jaws and legs

crustaceans. It is familiar to almost every one, that in a flower the relative position of the sepals, petals, stamens, and pistils, as well as their intimate structure, are intelligible on the view that they consist of metamorphosed leaves, arranged in a spire. In monstrous plants, we often get direct evidence of the possibility of one organ being transformed into another; and we can actually

see,

see

→in flowers during their early development, as well as in crustaceans and many other animals during their embryonic states, →that organs, which when mature become extremely

different

different,

are at →an early stage of growth exactly alike.

How inexplicable are →these facts on the ordinary view of creation! Why should the brain be enclosed in a box composed of such numerous and such

extraordinarily

extraordinary

extraor- dinarily

extra-ordinarily

shaped pieces of →bone? As Owen has remarked, the benefit derived from the yielding of the separate pieces in the act of parturition

mammals, will by no means explain the same construction in the skulls of →birds and reptiles. Why should similar bones have been created →in the formation of the wing and

leg

the leg

of a bat, used as they are for such totally different →purposes? Why should one crustacean, which has an extremely complex mouth formed of many parts, consequently always have fewer legs; or conversely, those with many legs have simpler mouths? Why should the sepals, petals, stamens, and

pistils,

pistils

each

any individual

flower, though fitted for such

distinct

widely different

purposes, be all constructed on the same pattern?

On the theory of natural selection, we

can,

can

→satisfactorily