Origin of Species Variorum

→ in 1859 1860 1861 1866

the oxen of 1869 1872

→ in comparison with 1859 1860 1861 1866

relatively to the length of 1869 1872

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

Breeders of cattle wish the flesh and fat to be well marbled together: an animal thus characterised has been slaughtered, but the breeder has gone with confidence to the same stock and has succeeded.

→ breeders of cattle wish the flesh and fat to be well marbled together; the animal has been slaughtered, 1866 1869

a well-flavoured vegetable is cooked, and the individual is destroyed; 1859 1860 1861

→ breeder has gone with confidence to 1866 1869

horticulturist sows seeds of 1859 1860 1861

→ has succeeded. 1866 1869

confidently expects to get nearly the same variety; breeders of cattle wish the flesh and fat to be well marbled together; the animal has been slaughtered, but the breeder goes with confidence to the same family. 1859

confidently expects to get nearly the same variety: breeders of cattle wish the flesh and fat to be well marbled together; the animal has been slaughtered, but the breeder goes with confidence to the same family. 1860

→ may be placed in 1866 1869 1872

in 1859 1860 1861

→ probably 1866 1869

I do not doubt that 1859 1860 1861

OMIT 1872

→ be slowly 1859 1860 1861 1866 1869

it is probable, be 1872

→ of various colours, 1866 1869

OMIT 1872

→ so that, if the variety had not yielded others, it would at once have become extinct; but it likewise always 1866

so that, if the variety had not likewise yielded others, it would at once have become extinct; but it always 1869

but they likewise 1872

→ only 1866

from ordinary single varieties only 1869

OMIT 1872

→ two forms, from ordinary single varieties. 1866

OMIT 1872

the two forms. 1869

→ these single and fertile plants 1866

the fertile plants 1869

These latter, by which alone the variety can be propagated, 1872

→ may 1866 1872

producing single flowers may 1869

of different breeds of cattle in relation to an artificially imperfect state of the male sex; for oxen of certain breeds have longer horns than →in other breeds, →in comparison with the horns

in both

the bulls

and

cows of these same breeds. Hence I can see no

great

real

difficulty in any character

becoming

having become

correlated with the sterile condition of certain members of insect-communities: the difficulty lies in understanding how such correlated modifications of structure could have been slowly accumulated by natural selection.

This difficulty, though appearing insuperable, is

les- sened,

lessened,

or, as I believe, disappears, when it is remembered that selection may be applied to the family, as well as to the individual, and may thus gain the desired end. ↑ Thus, →breeders of cattle wish the flesh and fat to be well marbled together; the animal has been slaughtered, but the →breeder has gone with confidence to the same

stock,

family,

stock

and →has succeeded.

I have

....

such

Such

faith →may be placed in the

powers

power

of selection, that →probably a breed of cattle, always yielding oxen with extraordinarily long horns,

could,

could

→be slowly formed by carefully watching which individual bulls and cows, when matched, produced oxen with the longest horns; and yet no one ox

could

would

ever have propagated its kind. Here is a better and real illustration: according to M. Verlot, some varieties of the double annual

Stock

stock

→of various colours, from having been long

and carefully

carefully

selected to the right degree, always produce

~~by seed~~

by seed

a large proportion of

seedlings

plants

bearing double and quite sterile flowers; →so that, if the variety had not yielded others, it would at once have become extinct; but it likewise always

yield

yields

some single and fertile

plants.

plants,

~~which~~

which

~~differ~~

differ

→only