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Last year he sent me a memoir on this subject, with a request 1860
Last year he sent to me a memoir on this subject, with a request 1859
In 1858 he sent me a memoir on this subject, with a request 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

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
have on the origin of species. 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
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

cannot possibly be here done. 1859 1860 1861 1866
is here impossible. 1869 1872

natural
natural
history
history
of
of
the
the
Malay
Malay
archipelago,
archipelago,
has
has
arrived
arrived
at
at
almost
almost
exactly
exactly
the
the
same
same
general
general
conclusions
conclusions
that
that
I
I
have
have
on
on
the
the
origin
origin
of
of
species.
species.
Last year 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. 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.
This Abstract, which I now publish, must necessarily be imperfect. I cannot here give references and authorities for my several statements; and I must trust to the reader reposing some confidence in my accuracy. No doubt errors will have crept in, though I hope I have always been cautious in trusting to good authorities alone. I can here give only the general conclusions at which I have arrived, with a few facts in illustration, but which, I hope, in most cases will suffice. No one can feel more sensible than I do of the necessity of hereafter publishing in detail all the facts, with references, on which my conclusions have been grounded; and I hope in a future work to do this. For I am well aware that scarcely a single point is discussed in this volume on which facts cannot be adduced, often apparently leading to conclusions directly opposite to those at which I have arrived. A fair result can be obtained only by fully stating and balancing the facts and arguments on both sides of each question; and this cannot possibly be here done.
I much regret that want of space prevents my having the satisfaction of acknowledging the generous assistance which I have received from very many naturalists, some of them personally unknown to me. I cannot, however,