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OMIT 1872
1859
— — — 1860
— — 1861
OMIT 1866 1869

organic beings inhabiting 1861 1866 1869 1872
inhabitants of 1859 1860

as will be seen in the latter chapters of this volume, seemed 1861 1866 1869 1872
seemed to me 1859 1860

many 1872
two or three 1859 1860 1861 1866 1869

Wallace, who is now studying the natural history of the Malay archipelago, has arrived at almost exactly the same general conclusions 1872
Last year he sent to me a memoir on this subject, with a request 1859
Last year he sent me a memoir on this subject, with a request 1860
In 1858 he sent me a memoir on this subject, with a request 1861 1866 1869

have on the origin of species. 1872
would forward it to Sir Charles Lyell, who sent it to the Linnean Society, and it is published in the third volume of the Journal of that Society. 1859 1860 1861 1866 1869

In 1858 he sent me a memoir on this subject, with a request that I would forward it to Sir Charles Lyell, who sent it to the Linnean Society, and it is published in the third volume of the Journal of that Society. 1872
Sir C. Lyell and Dr. Hooker, who both knew of my work— the latter having read my sketch of 1844— honoured me by thinking it advisable to publish, with Mr. Wallace's excellent memoir, some brief extracts from my manuscripts. 1859 1860 1861 1866 1869

ON THE
....
ORIGIN OF
SPECIES,
SPECIES.
OMIT
....
OMIT
INTRODUCTION.
WHEN on board H.M.S. 'Beagle,' as naturalist, I was much struck with certain facts in the distribution of the organic beings inhabiting South America, and in the geological relations of the present to the past inhabitants of that continent. These
facts
facts,
as will be seen in the latter chapters of this volume, seemed to throw some light on the origin of species— that mystery of mysteries, as it has been called by one of our greatest philosophers. On my return home, it occurred to me, in 1837, that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years' work I allowed myself to speculate on the subject, and drew up some short notes; these I enlarged in 1844 into a sketch of the conclusions, which then seemed to me
probable:
probable;
from that period to the present day I have steadily pursued the same object. I hope that I may be excused for entering on these personal details, as I give them to show that I have not been hasty in coming to a decision.
My work is now
nearly
(1859) nearly
finished; but as it will take me many more years to complete it, and as my health is far from strong, I have been urged to publish this Abstract. I have more especially been induced to do this, as Mr.
Wallace,
....
who
....
is
....
now
....
studying
....
the
....
natural
....
history
....
of
....
the
....
Malay
....
archipelago,
....
has
....
arrived
....
at
....
almost
....
exactly
....
the
....
same
....
general
....
conclusions
....
that
....
I
....
have
....
on
....
the
....
origin
....
of
....
species.
....
Wallace, who is now studying the natural history of the Malay archipelago, has arrived at almost exactly the same general conclusions that I have on the origin of species. In 1858 he sent me a memoir on this subject, with a request that I would forward it to Sir Charles Lyell, who sent it to the Linnean Society, and it is published in the third volume of the Journal of that Society.
This Abstract, which I now publish, must necessarily be imperfect. I cannot here give references and authorities for my