Origin of Species Variorum

→ north to 1859 1860 1861

the north to the 1866 1869 1872

→ became commingled 1859 1860 1861 1866

two sets be- came commingled in the equatorial regions, 1869

two sets became commingled in the equatorial regions, 1872

→ Glacial 1859 1860 1861 1866

alternations of the Glacial 1869 1872

→ were 1859 1860 1861 1869 1872

will have been 1866

→ enabled to beat the less powerful 1859 1860 1861 1866

the more powerful and were able to hold their places on the mountains, and afterwards to migrate southward with the 1869 1872

→ forms. 1859 1860 1861 1866

forms; but not so the southern in regard to the northern forms. 1869 1872

→ as we see 1859 1860 1861 1866

we see 1869

OMIT 1872

→ that 1859 1860 1861 1866 1869

we see that 1872

→ and in 1859 1860 1861 1866

New Zealand, and to 1869 1872

→ to a certain extent 1859 1860 1861 1866

OMIT 1869 1872

→ Europe, 1859 1860 1861

the northern hemisphere, 1866 1869 1872

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

The Neilgherrie mountains in India, however, offer a partial exception; for here, as I hear from Dr. Hooker, Australian forms are rapidly sowing themselves and becoming naturalised.

→ Something of the same kind must have occurred on 1859 1860 1861

Before the Glacial period, no doubt 1866

Before the last great Glacial period, no doubt 1869 1872

→ no doubt before the Glacial period they 1859 1860 1861

OMIT 1866 1869 1872

→ the naturalised; 1859 1860 1861

those which have become naturalised there; 1866

those which have become naturalised; 1869 1872

→ if the natives have not been actually exterminated, their numbers have been greatly reduced, and 1859 1860 1861 1866

OMIT 1869 1872

→ the intertropical mountains before the Glacial period must have been completely isolated; and I believe that the productions of these islands on the land 1859 1860 1861

the intertropical mountains before the Glacial period must have been completely isolated; and I believe that the inhabitants of these islands on the land 1866

their inhabitants have 1869 1872

this preponderant migration from →north to south is due to the greater extent of land in the north, and to the northern forms having existed in their own homes in greater numbers, and having consequently been advanced through natural selection and competition to a higher stage of

perfection,

perfection

or dominating power, than the southern forms. And thus, when

the

they

→became commingled during the →Glacial

periods,

period,

the northern forms →were →enabled to beat the less powerful southern →forms.

Just in

the same manner →as we see at the present day, →that very many European productions cover the ground in La Plata, →and in a lesser degree in Australia, and have →to a certain extent beaten the natives; whereas extremely few southern forms have become naturalised in any part of →Europe, though hides, wool, and other objects likely to carry seeds have been largely imported into Europe during the last two or three centuries from La Plata, and during the last

forty

thirty

fifty

forty

years from Australia. ↑ →Something of the same kind must have occurred on the intertropical

mountains

mountains:

→no doubt before the Glacial period they were stocked with endemic Alpine forms; but these have almost

every-where

everywhere

~~largely~~

largely

yielded to the more dominant forms, generated in the larger areas and more efficient workshops of the north. In many islands the native productions are nearly

equalled,

equalled

or even

out-numbered,

outnumbered,

outnumbered

by →the naturalised; and →if the natives have not been actually exterminated, their numbers have been greatly reduced, and this is the first stage towards

their extinction.

Mountains

are

islands

on the

land,

land;

and →the intertropical mountains before the Glacial period must have been completely isolated; and I believe that the productions of these islands on the land

have yielded

yielded

to those produced within the larger areas of the north, just in