Origin of Species Variorum

→ mammals were 1869 1872

the great class of mammals was 1859 1860

the whole class of mammals was 1861 1866

→ for its thickness, belongs 1860 1861 1866 1869

belongs 1859 1872

→ series. 1859 1860 1861 1869 1872

series. Cuvier used to urge that no monkey occurred in any tertiary stratum; but now extinct species have been discovered in India, South America, and in Europe, as far back as the miocene stage. 1866

→ kinds of birds, 1860 1861 1866 1869

different bird-like animals, 1872

→ beds. 1861 1866 1869 1872

beds. Notwithstanding that the number of joints shown in the fossil impressions correspond with the number in the several toes of living birds feet, some authors doubt whether the animals which left the impressions were really birds. 1860

↑ 2 blocks not present in 1859 1860 1861 1866 1869; present in 1872

Not long ago, palæontologists maintained that the whole class of birds came suddenly into existence during the eocene period; but now we know, on the authority of Professor Owen, that a bird certainly lived during the deposition of the upper greensand; and still more recently, that strange bird, the Archeopteryx, with a long lizard-like tail, bearing a pair of feathers on each joint, and with its wings furnished with two free claws, has been discovered in the oolitic slates of Solenhofen. Hardly any recent discovery shows more forcibly than this, how little we as yet know of the former inhabitants of the world.

→ the eocene 1866 1869

an early tertiary 1860 1861

→ OMIT 1861 1866 1869

(as may be seen in Lyells Manual), 1860

supposing that whole groups of species have suddenly been produced. Even in so short an interval as that between the first and second editions of

Pictet's

Pictets

great work on Palæontology, published in 1844-46 and

1853-57, the conclusions on the first appearance and disappearance of several groups of animals have been considerably modified; and a third edition would require still further changes. I may recall the well-known fact that in geological treatises, published not many years ago, →mammals were always spoken of as having abruptly come in at the commencement of the tertiary series. And now one of the richest known accumulations of fossil

mammals

mammals,

→for its thickness, belongs to the middle of the secondary series; and

one

....

true

mammal

mammals

has

have

been discovered in the new red sandstone at nearly the commencement of this great →series. Cuvier used to urge that no monkey occurred in any tertiary stratum; but now extinct species have been discovered in India, South America, and in

Europe

Europe,

even

....

as far back as the

eocene

miocene

stage. Had it not been for the rare accident of the preservation of footsteps in the new red sandstone of the United States, who would have ventured to suppose

that

that,

~~besides reptiles,~~

besides reptiles,

no less than at least thirty →kinds of birds, some of gigantic size, existed during that period? Notwithstanding that the number of joints shown in the fossil impressions

correspond

corresponds

with the number in the several toes of living birds' feet, some authors doubt whether the animals which left

the

these

impressions were really birds. Not a fragment of bone has been discovered in these →beds. ↑ Until quite recently these authors might have maintained, and some have maintained, that the whole class of birds came suddenly into existence during →the eocene period; but now we know, on the authority of Professor

Owen

Owen,

→OMIT