Origin of Species Variorum

→ but likewise denuded condition. 1861 1866

condition. 1859 1860

and denuded condition. 1869 1872

→ namely— that though we find in our geological formations many 1861

namely our not finding in the successive formations infinitely numerous transitional 1859 1860

namely— that, though we find in our geological formations many 1866 1869 1872

→ and have existed, 1861 1866

or have existed; 1859 1860

and which formerly existed, we do not find infinitely numerous fine transitional forms closely joining them all together;— 1869 1872

→ we do not find infinitely numerous fine transitional forms closely joining them all together;— the 1861 1866

the 1859 1860 1869 1872

→ beneath the Silurian strata,— 1861

beneath the Silurian strata, 1859 1860

rich in fossils beneath the Silurian strata,— 1866

rich in fossils beneath the Cambrian strata,— 1869 1872

→ OMIT 1861 1866 1869 1872

plainest manner by the 1859 1860

→ I have reason to believe that one great authority, 1859 1860 1861

it is evident from the recent works of 1866

OMIT 1869 1872

→ from further reflection entertains grave doubts on this subject. 1861

from further reflexion entertains grave doubts on this subject. 1859 1860

that he now almost gives up this view; and some other great geologists and palæontologists are much shaken in their confidence. 1866

now gives the support of his high authority to the opposite side; and most other geologists and palæontologists are much shaken in their former belief. 1869

now gives the support of his high authority to the opposite side; and most geologists and palæontologists are much shaken in their former belief. 1872

→ think the natural 1859 1860 1861

believe that the 1866 1869 1872

→ and who do not attach much weight to the facts and arguments of other kinds given in this volume, 1859 1860 1861

OMIT 1866 1869 1872

undergone far more metamorphic action than strata which have always remained nearer to the surface. The immense areas in some parts of the world, for instance in South America, of

naked

bare

metamorphic rocks, which must have been heated under great pressure, have always seemed to me to require some special explanation; and we may perhaps believe that we see in these large areas, the many formations long anterior to the

silurian

Cambrian

Silurian

epoch in a completely metamorphosed →but likewise denuded condition.

The several difficulties here discussed, →namely— that though we find in our geological formations many links between the

many

....

species which now exist →and have existed, →we do not find infinitely numerous fine transitional forms closely joining them all together;— the sudden manner in which

whole

several

several whole

groups of species

appear

first appear

first appeared

in our European

formations;

formations;—

the almost entire absence, as at present known, of

~~fossiliferous~~

fossiliferous

formations →beneath the Silurian strata,— are all undoubtedly of the

gravest

most serious

nature. We see this in the →OMIT fact that

all

....

the most eminent palæontologists,

namely,

namely

Cuvier,

Owen,

....

Agassiz, Barrande,

Falconer,

Pictet, Falconer,

E. Forbes ,

&c.,

&c,

and all our greatest geologists, as Lyell, Murchison, Sedgwick,

&c.,

have unanimously, often vehemently, maintained the immutability of species. But →I have reason to believe that one great authority, Sir Charles

Lyell

Lyell,

→from further reflection entertains grave doubts on this subject. I feel how rash it is to differ from

these great

the foregoing

these

authorities, to whom, with others, we owe all our knowledge. Those who →think the natural geological record

is in

any degree perfect, →and who do not attach much weight to the facts and arguments of other kinds given in this volume, will undoubtedly at once reject

the

theory. For my part, following out

Lyells

Lyell's

metaphor, I look at the

~~natural~~

natural