Origin of Species Variorum

→ OMIT 1869 1872

same variety, as the 1859 1860 1861 1866

→ OMIT 1869 1872

with other varieties 1859 1860 1861 1866

→ in the case of 1869

in the case of slow-breeding 1859 1860 1861 1866

with 1872

→ breed slowly and unite 1869

unite 1859 1860 1861 1866 1872

→ we 1859 1860 1861 1866 1869

and which do not propagate rapidly, we 1872

→ assume that 1869

overrate 1859 1860 1861 1866

assume that free intercrossing would always eliminate 1872

→ OMIT 1869 1872

intercrosses in retarding 1859 1860 1861 1866

→ will always be immediately overpowered by free intercrossing; for 1869

for 1859 1860 1861 1866 1872

→ a considerable body 1869

a considerable catalogue 1859 1860 1861 1866

forward a considerable body 1872

→ varieties of the same kind 1859 1860 1861 1866 1869

the individuals of each variety 1872

→ as already stated 1869

I have already attempted to show that 1859 1860 1861 1866

as already stated, 1872

→ of time, 1869 1872

I am convinced that 1859 1860

OMIT 1861 1866

→ If there exist 1859 1860 1861 1866 1869

With respect to 1872

→ which never 1859 1860 1861 1866 1869

extremely low in the scale, which do not propagate sexually, nor conjugate, and which cannot possibly 1872

→ as long as their 1859 1860 1861 1866 1869

under the same 1872

→ remain the same, 1859 1860 1861 1866 1869

OMIT 1872

→ destroying any which depart 1859 1860 1861 1866 1869

which will destroy any individuals departing 1872

→ but if their 1859 1860 1861 1866 1869

If the 1872

→ changes effected through 1869

process of 1859 1860 1861 1866

modification of 1872

always prefer

getting

saving

seed from a large body of

plants

plants,

the →OMIT chance of intercrossing →OMIT is thus lessened.

Even →in the case of

animals,

animals

which →breed slowly and unite for each birth, →we must not →assume that the effects of →OMIT natural

selection;

selection

→will always be immediately overpowered by free intercrossing; for I can bring →a considerable body of

facts

facts,

showing that within the same area,

two varieties

varieties

of the same animal

can

may

long remain distinct, from haunting different stations, from breeding at slightly different seasons, or from →varieties of the same kind preferring to pair together.

Intercrossing plays a very important part in nature

keeping the individuals of the same species, or of the same variety, true and uniform in character. It will obviously thus act far more efficiently with those animals which unite for each birth;

but,

but

→as already stated we have reason to believe that occasional intercrosses take place with all animals and

~~with all~~

with all

plants. Even if these take place only at long

intervals,

intervals

→of time, the young thus produced will gain so much in vigour and fertility over the offspring from long-continued self-fertilisation, that they will have a better chance of surviving and propagating their kind; and thus, in the long run, the influence of

crosses,

intercrosses,

even at rare intervals, will be great. →If there exist organic beings →which never intercross, uniformity of character can be retained

amongst

them

them,

→as long as their conditions of

life,

life

→remain the same, only through the principle of

inheritance,

inheritance