Origin of Species Variorum

→ a 1859 1860 1861 1866

so large a 1869

OMIT 1872

→ whole 1859 1860 1861 1866 1869

domestic dog throughout the 1872

→ for who will 1861 1866 1869 1872

Who can 1859 1860

→ Many cases are on record, showing 1861 1872

There can be no doubt 1859 1860

→ could be obtained nearly 1859 1860 1861

OMIT 1872

→ extremely different races or species, I can hardly believe. 1860 1861

extremely different races or speceies, I can hardly believe. 1859

quite distinct races, would be very difficult. 1872

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

Many cases are on record, showing that a race may be modified by occasional crosses, if aided by the careful selection of the individuals which present the desired character; but to obtain a race nearly intermediate between two extremely different races or species, would be very difficult.

→ and 1859 1860 1861 1866 1869

in character, and 1872

→ or rather utter hopelessness, 1859 1860 1861

or rather utter hopelessness 1866

OMIT 1869 1872

admit that many domestic breeds

must have

have

originated in Europe; for whence

have

otherwise could

could

they

~~have~~

have

been

derived?

~~these~~

~~several~~

~~countries~~

could

~~not~~

not

~~possess~~

possess

→a

~~number~~

number

~~peculiar~~

peculiar

~~species~~

species

~~as distinct~~

for

as distinct

~~parent-stocks?~~

parent-stocks?

So it is in India. Even in the case of the

breeds

domestic dogs

of the →whole world, which I

fully

....

admit

have probably

are

to have

descended from several wild species,

cannot

doubt

be doubted

that there has been an immense amount of inherited

variation.

variation;

→for who will believe that animals closely resembling the Italian greyhound, the bloodhound, the bull-dog,

pug-dog, or

Blenheim spaniel, &c. — so unlike all wild Canidæ — ever existed

~~freely~~

freely

in a state of nature? It has often been loosely said that all our races of dogs have been produced by the crossing of a few aboriginal species; but by crossing we can

get only

only get

forms in some degree intermediate between their parents; and if we account for our several domestic races by this process, we must admit the former existence of the most extreme forms, as the Italian greyhound, bloodhound, bull-dog, &c., in the wild state. Moreover, the possibility of making distinct races by crossing has been greatly exaggerated. →Many cases are on record, showing that a race may be modified by occasional crosses, if aided by the careful selection of

the

those

individuals

individual

mongrels,

~~mongrels~~

mongrels

which present

the

any

desired character; but

to obtain