Origin of Species Variorum

→ are here perfectly 1869 1872

here enjoy good 1859 1860 1861 1866

→ be generally 1859 1860 1861 1866 1869

is in most cases 1872

→ in the case of 1859 1860 1861 1866 1869

with 1872

→ that is, they become 1869 1872

or becoming 1859 1860 1861 1866

→ the same species 1869 1872

trees 1859 1860 1861 1866

→ growing 1859 1860 1861 1869 1872

of the same species growing 1866

→ in this country to possess 1859 1860 1861 1866 1869

to possess in this country 1872

→ England; and I could give other cases. 1866 1869 1872

England. 1859 1860 1861

→ within historical times having largely extended 1859 1860 1861 1866 1869

having largely extended, within historical times, 1872

→ homes, so as to be better fitted for them than they were at first. 1866 1869 1872

homes. 1859 1860 1861

→ we may infer 1861 1866 1869 1872

I believe 1859 1860

→ because they bred 1869 1872

bred 1859 1860 1861 1866

imported plant will endure our climate, and from the number of plants and animals brought from

warmer

different

countries which →are here perfectly

health.

healthy.

We have reason to believe that species in a state of nature are

limited

closely limited

in their ranges by the competition of other organic beings quite as much as, or more than, by adaptation to particular climates. But whether or not

this

the

adaptation →be generally very close, we have

evidence

evidence,

→in the case of some few plants, of their becoming, to a certain extent, naturally habituated to different

temperatures,

temperatures;

→that is, they become

acclimatised;

acclimatised:

thus the pines and rhododendrons, raised from seed collected by Dr. Hooker from →the same species →growing at different heights on the Himalaya, were found →in this country to possess different constitutional powers of resisting cold. Mr. Thwaites informs me that he has observed similar facts in

Ceylon,

Ceylon;

and

....

analogous observations have been made by Mr.H.

Watson on European species of plants brought from the Azores to →England; and I could give other cases. In regard to animals, several authentic

cases

instances

could be

given

adduced

of species →within historical times having largely extended their range from warmer to cooler latitudes, and conversely; but we do not positively know that these animals were strictly adapted to their native climate,

but

yet

though

in all

ordi- nary

ordinary

cases we assume such to be the case; nor do we know that they have subsequently become

acclimatised

specially acclimatised

to their new →homes, so as to be better fitted for them than they were at first.

As →we may infer that our domestic animals were originally chosen by uncivilised man because they were useful and →because they bred readily under confinement, and not because they were subsequently found capable of far-extended transportation,

I think

....

the common and extraordinary capacity in our domestic animals of not only withstanding