Origin of Species Variorum

→ variations or individual differences as may arise will be accumulated through 1869 1872

variability be taken advantage of by 1859 1860 1861 1866

→ in 1869 1872

and whether the variations be accumulated to 1859 1860 1861 1866

→ of 1859 1860 1861 1869 1872

thus causing a greater or lesser amount of 1866

→ permanent modification, will 1869 1872

modification in the varying species, 1859 1860 1861 1866

→ OMIT 1869 1872

rate of breeding, on the 1859 1860 1861 1866

→ OMIT 1869 1872

and more especially 1859 1860 1861 1866

→ new colonists, and on the nature of the 1869 1872

the 1859 1860 1861 1866

→ in a less degree. 1869 1872

less. 1859 1860 1861 1866

→ find similar relations between the inhabitants of distinct countries; 1869

see the same fact in geographical distribution; 1859 1860 1861 1866

find similar relations between the existing inhabitants of distinct countries; 1872

→ from the 1869 1872

on that of the many 1859 1860 1861 1866

→ in the struggle for life, that 1869 1872

that 1859 1860 1861 1866

→ otherwise they would 1869 1872

those which do not change will 1859 1860 1861 1866

The

for the

variability of each species is

~~quite~~

quite

independent of that of all others. Whether such →variations or individual differences as may arise will be accumulated through natural

selection,

selection

→in a greater or

lesser amount,

less degree,

thus causing a greater or

lesser

less

amount,

amount

→of →permanent modification, will

depends

depend

on many complex

contingencies,—

contingencies—

on the

variability

variations

being of a beneficial nature, on the

power

freedom

intercrossing

intercrossing,

and on

the →OMIT slowly changing physical conditions of the country, →OMIT on the

nature

immigration

of →new colonists, and on the nature of the other inhabitants with which the varying species

comes

come

into competition. Hence it is by no means surprising that one species should retain the same identical form much longer than others; or, if changing,

~~that it~~

that it

should change →in a less degree. We →find similar relations between the inhabitants of distinct countries; for instance,

....

the land-shells and coleopterous insects of Madeira

having

have

come to differ considerably from their nearest allies on the continent of Europe, whereas the marine shells and birds have remained unaltered. We can perhaps understand the apparently quicker rate of change in terrestrial and in more highly organised productions compared with marine and lower productions, by the more complex relations of the higher beings to their organic and inorganic conditions of life, as explained in a former chapter. When many of the inhabitants of

a country

any area

have become modified and improved, we can understand, on the principle of competition, and →from the all-important relations of organism to

organism,

organism

→in the struggle for life, that any form which

did

does

not become in some degree modified and improved,

would

will

be liable to