Origin of Species Variorum

→ through natural selection, 1869 1872

selection, 1859 1860 1861 1866

→ might even 1869 1872

and their final abortion, present to us no inexplicable difficulties; on the contrary, their presence might 1859 1860 1861

and their final abortion, present to us no inexplicable difficulties; on the contrary, their pre- sence might 1866

→ have been 1869 1872

have been even 1859 1860 1861

even have been 1866

→ a natural arrangement must be 1869 1872

an arrangement is only so far natural as it is 1859 1860 1861 1866

→ OMIT 1869 1872

of organic beings, 1859 1860 1861 1866

this

these

same

principle—

principles,—

and bearing in mind, that when organs are reduced in size, either from disuse or →through natural selection, it will generally be at that period of life when the being has to provide for its own wants, and bearing in mind how strong is the

principle

force

of inheritance— the occurrence of rudimentary organs →might even →have been anticipated. The importance of embryological characters and of rudimentary organs in classification is intelligible, on the view that →a natural arrangement must be genealogical.

Finally, the several classes of facts which have been considered in this chapter, seem to me to proclaim so plainly, that the

inumerable

innumerable

species,

genera

genera,

and

families

families,

→OMIT with which this world is peopled,

have

are

all descended, each within its own class or group, from common parents, and have all been modified in the course of descent, that I should without hesitation adopt this view, even if it were unsupported by

other

any other

facts