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this head.

But the part of your letter which fairly pitched me head over heels with
astonishment, is that where you state that every single difference which
we see might have occurred without any selection. I do and have always
fully agreed; but you have got right round the subject, and viewed it
from an entirely opposite and new side, and when you took me there I was
astounded. When I say I agree, I must make the proviso, that under
your view, as now, each form long remains adapted to certain fixed
conditions, and that the conditions of life are in the long run
changeable; and second, which is more important, that each individual
form is a self-fertilising hermaphrodite, so that each hair-breadth
variation is not lost by intercrossing. Your manner of putting the case
would be even more striking than it is if the mind could grapple with
such numbers--it is grappling with eternity--think of each of a thousand
seeds bringing forth its plant, and then each a thousand. A globe
stretching to the furthest fixed star would very soon be covered. I
cannot even grapple with the idea, even with races of dogs, cattle,
pigeons, or fowls; and here all admit and see the accurate strictness of
your illustration.

Such men as you and Lyell thinking that I make too much of a Deus of
Natural Selection is a conclusive argument against me. Yet I hardly know
how I could have put in, in all parts of my book, stronger sentences.
The title, as you once pointed out, might have been better. No one ever
objects to agriculturalists using the strongest language about their
selection, yet every breeder knows that he does not produce the
modification which he selects. My enormous difficulty for years was to
understand adaptation, and this made me, I cannot but think, rightly,
insist so much on Natural Selection. God forgive me for writing at such
length; but you cannot tell how much your letter has interested me, and
how important it is for me with my present book in hand to try and get
clear ideas. Do think a bit about what is meant by direct action of
physical conditions. I do not mean whether they act; my facts will throw
some light on this. I am collecting all cases of bud-variations, in
contradistinction to seed-variations (do you like this term, for what
some gardeners call "sports"?); these eliminate all effects of crossing.
Pray remember how much I value your opinion as the clearest and most
original I ever get.

I see plainly that Welwitschia (146/2. Sir Joseph's great paper on
Welwitschia mirabilis was published in the "Linn. Soc. Trans." 1863.)
will be a case of Barnacles.

I have another plant to beg, but I write on separate paper as more
convenient for you to keep. I meant to have said before, as an excuse
for asking for so much from Kew, that I have now lost TWO seasons, by
accursed nurserymen not having right plants, and sending me the wrong
instead of saying that they did not possess.

LETTER 147. TO J.D. HOOKER. Down, 24th [November, 1862].

I have just received enclosed for you, and I have thought that you
would like to read the latter half of A. Gray's letter to me, as it is
political and nearly as mad as ever in our English eyes. You will see
how the loss of the power of bullying is in fact the sore loss to the
men of the North from disunion.

I return with thanks Bates' letter, which I was glad to see. It was
very good of you writing to him, for he is evidently a man who wants
encouragement. I have now finished his paper (but have read nothing
else in the volume); it seems to me admirable. To my mind the act of
segregation of varieties into species was never so plainly brought
forward, and there are heaps of capital miscellaneous observations.

I hardly know why I am a little sorry, but my present work is leading
me to believe rather more in the direct action of physical conditions. I
presume I regret it, because it lessens the glory of Natural Selection,
and is so confoundedly doubtful. Perhaps I shall change again when I get
all my facts under one point of view, and a pretty hard job this will
be. (147/1. This paragraph was published in "Life and Letters," II.,
page 390. It is not clear why a belief in "direct action" should
diminish the glory of Natural Selection, since the changes so produced
must, like any other variations, pass through the ordeal of the survival
of the fittest. On the whole question of direct action see Mr. Adam
Sedgwick's "Presidential Address to the Zoological Section of the
British Association," 1899.)

LETTER 148. TO H.W. BATES. Down, November 25th [1862?].

I should think it was not necessary to get a written agreement. (148/1.
Mr. Bates' book, "A Naturalist on the Amazons," was published in 1863.)
I have never had one from Murray. I suppose you have a letter with
terms; if not, I should think you had better ask for one to prevent
misunderstandings. I think Sir C. Lyell told me he had not any formal
agreements. I am heartily glad to hear that your book is progressing.
Could you find me some place, even a footnote (though these are in nine
cases out of ten objectionable), where you could state, as fully as your
materials permit, all the facts about similar varieties pairing,--at a
guess how many you caught, and how many now in your collection? I look
at this fact as very important; if not in your book, put it somewhere
else, or let me have cases.

I entirely agree with you on the enormous advantage of thoroughly
studying one group.

I really have no criticism to make. (148/2. Mr. Bates' paper on mimetic
butterflies was read before the Linnean Society, November 21st, 1861,
and published in the "Linn. Soc. Trans." XXIII., 1862, page 495, under
the title of "Contributions to an Insect Fauna of the Amazon Valley.")
Style seems to me very good and clear; but I much regret that in the
title or opening passage you did not blow a loud trumpet about what
you were going to show. Perhaps the paper would have been better more
divided into sections with headings. Perhaps you might have given
somewhere rather more of a summary on the progress of segregation
of varieties, and not referred your readers to the descriptive part,
excepting such readers as wanted minute detail. But these are trifles:
I consider your paper as a most admirable production in every way.
Whenever I come to variation under natural conditions (my head for
months has been exclusively occupied with domestic varieties), I shall
have to study and re-study your paper, and no doubt shall then have to
plague you with questions. I am heartily glad to hear that you are well.
I have been compelled to write in a hurry; so excuse me.

LETTER 149. TO T.H. HUXLEY. Down, December 7th [1862].

I was on the point of adding to an order to Williams & Norgate for your
Lectures (149/1. "A Course of Six Lectures to Working Men," published in
six pamphlets by Hardwicke, and later as a book. See Letter 156.) when
they arrived, and much obliged I am. I have read them with interest, and
they seem to me very good for thi

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