Origin of Species Variorum

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

We should bear in mind that many genera in all classes are of ancient origin, and the species in this case will have had ample time for dispersal and subsequent modification.

→ In considering the wide distribution of certain genera, we 1859 1860 1861 1866

We 1869

→ that some are extremely ancient, and that the species must have branched off from a common parent at a remote epoch; so that in such cases there 1861

that some are extremely ancient, and must have branched off from a common parent at a remote epoch; so that in such cases there 1859 1860

that some of them are extremely ancient, and that their species will have branched off from a common progenitor at a remote epoch; so that in these cases there 1866

in relation to all organic beings that many genera are of very ancient origin, and the species in this case 1869

→ great climatal and geographical changes and for accidents of transport; and consequently for the migration of some of the species into all quarters of the world, where they may have become slightly modified in relation to their new conditions. 1859 1860 1861

great climatal and geographical changes and for accidents of transport; consequently for the migration of some of the species into all quarters of the world, where they will have become slightly modified in relation to their new conditions. 1866

dispersal and subsequent modification. 1869

→ organisms low in the scale 1859 1860 1861 1866

OMIT 1869 1872

→ generally 1859 1860 1861 1866

the lower organisms 1869 1872

→ the 1859 1860 1861 1866 1869

that of the 1872

→ many low 1859 1860 1861 1866

almost all lowly organised 1869

most lowly organised 1872

→ is apt to 1859 1860 1861 1866

OMIT 1869 1872

→ low and slowly-changing 1859 1860 1861 1866

lower 1869 1872

→ related (with the exceptions before specified) 1859 1860 1861 1866

generally related 1869 1872

→ on 1859 1860 1861 1866

which live on 1869 1872

→ lands, though these stations are so different,— the very close relation 1860 1861 1866

lands, though these stations are so different— the very close relation 1859

lands,— the striking relationship between the inhabitants of islands and those 1869 1872

→ distinct species which inhabit the islets 1859 1860 1861 1866

nearest mainland— the still closer relationship 1869 1872

→ same archipelago,— and especially the striking relation 1859 1860 1861 1866

distinct inhabitants 1869 1872

→ inhabitants of each whole archipelago or island to those 1859 1860 1861 1866

islands in the same archipelago— are inexplicable on the ordinary view 1869 1872

~~for~~

~~the~~

~~conversion~~

~~its~~

~~offspring,~~

first

~~firstly~~

~~into~~

~~new~~

~~varieties~~

~~and~~

~~ultimately~~

~~into~~

~~new~~

~~species.~~

↑

→In considering the wide distribution of certain genera, we should bear in mind →that some are extremely ancient, and that the species must have branched off from a common parent at a remote epoch; so that in such cases there will have

had

been

ample time for →great climatal and geographical changes and for accidents of transport; and consequently for the migration of some of the species into all quarters of the world, where they may have become slightly modified in relation to their new conditions. There

is,

also

also,

~~some~~

some

reason to believe from geological

evidence,

evidence

that →organisms low in the scale within each great

class

class,

→generally change at a slower rate than the

higher;

higher

forms;

~~forms; and~~

forms; and

consequently

they

the

~~lower forms~~

lower forms

will have had a better chance of ranging widely and of still retaining the same specific character. This fact, together with →the seeds and eggs of →many low forms being very minute and better fitted for distant

transportal,

transportation,

probably accounts for a law which has long been observed, and which has lately been

~~admirably~~

admirably

discussed by Alph. de Candolle in regard to plants, namely, that the lower any group of organisms

stands,

is,

the more widely it →is apt to

ranges.

range.

The relations just discussed,— namely, →low and slowly-changing organisms ranging more widely than the

higher,—

high,—

some of the species of widely-ranging genera themselves ranging widely,— such facts, as alpine, lacustrine, and marsh productions being →related (with the exceptions before specified) to those →on the surrounding low lands and dry →lands, though these stations are so different,— the very close relation of the →distinct species which inhabit the islets of the →same archipelago,— and especially the striking relation of the →inhabitants of each whole archipelago or island to those