Origin of Species Variorum

→ AN HISTORICAL SKETCH OF THE RECENT PROGRESS OF OPINION ON THE ORIGIN OF SPECIES. 1866

An Historical Sketch of the recent Progress of Opinion on the Origin of Species. — — — — — — — — 1861

AN HISTORICAL, SKETCH OF THE RECENT PROGRESS OF OPINION ON THE ORIGIN OF SPECIES. 1869

AN HISTORICAL SKETCH OF THE PROGRESS OF OPINION ON THE ORIGIN OF SPECIES, 1872

←Subtitle not present 1861 1866 1869 PREVIOUSLY TO THE PUBLICATION OF THE FIRST EDITION OF THIS WORK. — — — — — — — — 1872

→ The 1861 1866

Until recently the 1869 1872

→ are the descendants 1866 1869 1872

have descended 1861

→ allusions to the subject in 1866 1869 1872

authors from 1861

→ writers, ∗ the first author who in modern times has treated it in a scientific spirit was Buffon. 1866 1869

period to that of Buffon, with whose writings I am not familiar, 1861

writers, ∗ the first author who in modern times has treated it in a scientific spirit was Buffon. 1872

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

But as his opinions fluctuated greatly at different periods, and as he does not enter on the causes or means of the transformation of species, I need not here enter on details.

→ works 1861 1866 1869

— — — — — — — — — — — — — — — — works 1872

→AN HISTORICAL SKETCH OF THE RECENT PROGRESS OF OPINION ON THE ORIGIN OF SPECIES. →

will

WILL

here

attempt to

....

give a

brief

brief,

but imperfect

~~but imperfect,~~

but imperfect,

sketch of the progress of opinion on the Origin of Species. →The great majority of naturalists

believed

believe

that species

were

are

immutable productions, and

had

have

been separately created. This view has been ably maintained by many authors. Some few naturalists, on the other hand,

have believed

believe

that species undergo modification, and that the existing forms of life →are the descendants by true generation

from

pre-existing forms. Passing over →allusions to the subject in the classical → writers, ∗ the first author who in modern times has treated it in a scientific spirit was Buffon. ↑

Lamarck

Lamrack

Lamarck

was the first man whose conclusions on

this

the

subject excited much attention. This justly-celebrated

naturalists

naturalist

first published his views in

1801,

1801;

and he

much enlarged them in 1809 in his 'Philosophie Zoologique,' and subsequently, in 1815, in

his

the

Introduction to his

'Hist,

'Hist.

Nat. des Animaux sans

Vertébres.'

Vertèbres.'

In these →works he upholds the doctrine that all species, including man, are descended from other species. He first did the eminent service of arousing attention to the probability of all change in the

organic

organic,

as well as in the inorganic

world

world,

being the result of law, and not of