Origin of Species Variorum

→ inheritance and to having already 1866

inheritance, and to having already 1859 1860 1861

their having 1869 1872

→ parents or 1859 1860 1861 1866

already dominant parents, as well as 1869 1872

→ other new forms. 1866

new species. 1859 1860 1861

new forms. 1869 1872

→ will 1866

in both ways will 1859 1860 1861

OMIT 1869 1872

→ correspond in their first appearance and final disappearance. 1866

correspond. 1859 1860 1861

correspond both in their first appearance and final disappearance. 1869 1872

→ rich in fossils, were 1861 1866 1869 1872

were 1859 1860

→ occurred 1859 1860 1861 1866

as far as fossils are concerned, occurred 1869 1872

thus produced being themselves

dominant

dominant,

owing to →inheritance and to having already had some advantage over their →parents or over other

species;

species,

these

and

again spreading, varying, and producing →other new forms. The

forms

old forms

which are beaten and which yield their places to the new and victorious forms, will generally be allied in groups, from inheriting some inferiority in common; and

therefore

therefore,

as new and improved groups spread throughout the world, old groups

~~will~~

will

disappear from the world; and the succession of forms →will everywhere

tends

tend

to →correspond in their first appearance and final disappearance.

There is one other remark connected with this subject worth making. I have given my reasons for believing that

all

most of

our

great

greater

fossiliferous

....

formations

formations,

→rich in fossils, were deposited during periods of subsidence; and that blank intervals of vast

duration,

duration

→occurred during the periods when the bed of the sea was either stationary or rising, and likewise when sediment was not thrown down quickly enough to embed and preserve organic remains. During these long and blank intervals I suppose that the inhabitants of each region underwent a considerable amount of modification and extinction, and that there was much migration from other parts of the world. As we have reason to believe that large areas are affected by the same movement, it is probable that strictly contemporaneous formations have often been accumulated over very wide spaces in the same quarter of the world; but we are

very far

far

from having any right to conclude that this has invariably been the case, and that large areas have

inva- riably

invariably

been affected by the same movements. When two formations have been deposited in two regions during nearly, but not

exactly

exactly,

the same period, we should find in both, from the causes explained in the foregoing