When you say you cannot master the train of thoughts, I know well enough that they are too doubtful and obscure to be mastered. I have often experienced what you call the humiliating feeling of getting more and more involved in doubt the more one thinks of the facts and reasoning on doubtful points. But I always comfort myself with thinking of the future, and in the full belief that the problems which we are just entering on, will some day be solved; and if we just break the ground we shall have done some service, even if we reap no harvest.
I quite agree that we only differ in DEGREE about the means of dispersal, and that I think a satisfactory amount of accordance. You put in a very striking manner the mutation of our continents, and I quite agree; I doubt only about our oceans.
I also agree (I am in a very agreeing frame of mind) with your argumentum ad hominem, about the highness of the Australian Flora from the number of species and genera; but here comes in a superlative bothering element of doubt, viz., the effect of isolation.
The only point in which I PRESUMPTUOUSLY rather demur is about the status of the naturalised plants in Australia. I think Muller speaks of their having spread largely beyond cultivated ground; and I can hardly believe that our European plants would occupy stations so barren that the native plants could not live there. I should require much evidence to make me believe this. I have written this note merely to thank you, as you will see it requires no answer.
I have heard to my amazement this morning from Phillips that the Geological Council have given me the Wollaston Medal!!!
Ever yours, CHARLES DARWIN.
CHARLES DARWIN TO J.D. HOOKER.
Down, January 23d, 1859.
...I enclose letters to you and me from Wallace. I admire extremely the spirit in which they are written. I never felt very sure what he would say. He must be an amiable man. Please return that to me, and Lyell ought to be told how well satisfied he is. These letters have vividly brought before me how much I owe to your and Lyell's most kind and generous conduct in all this affair.
...How glad I shall be when the Abstract is finished, and I can rest!...
CHARLES DARWIN TO A.R. WALLACE.
Down, January 25th [1859].
My dear Sir, I was extremely much pleased at receiving three days ago your letter to me and that to Dr. Hooker. Permit me to say how heartily I admire the spirit in which they are written. Though I had absolutely nothing whatever to do in leading Lyell and Hooker to what they thought a fair course of action, yet I naturally could not but feel anxious to hear what your impression would be. I owe indirectly much to you and them; for I almost think that Lyell would have proved right, and I should never have completed my larger work, for I have found my Abstract hard enough with my poor health, but now, thank God, I am in my last chapter but one. My Abstract will make a small volume of 400 or 500 pages. Whenever published, I will, of course, send you a copy, and then you will see what I mean about the part which Ibelieve selection has played with domestic productions. It is a very different part, as you suppose, from that played by "Natural Selection." Isent off, by the same address as this note, a copy of the 'Journal of the Linnean Society,' and subsequently I have sent some half-dozen copies of the paper. I have many other copies at your disposal...
I am glad to hear that you have been attending to birds' nests. I have done so, though almost exclusively under one point of view, viz., to show that instincts vary, so that selection could work on and improve them. Few other instincts, so to speak, can be preserved in a Museum.
Many thanks for your offer to look after horses' stripes; If there are any donkeys, pray add them. I am delighted to hear that you have collected bees' combs...This is an especial hobby of mine, and I think I can throw a light on the subject. If you can collect duplicates, at no very great expense, I should be glad of some specimens for myself with some bees of each kind. Young, growing, and irregular combs, and those which have not had pupae, are most valuable for measurements and examination. Their edges should be well protected against abrasion.
Every one whom I have seen has thought your paper very well written and interesting. It puts my extracts (written in 1839, now just twenty years ago!), which I must say in apology were never for an instant intended for publication, into the shade.
You ask about Lyell's frame of mind. I think he is somewhat staggered, but does not give in, and speaks with horror, often to me, of what a thing it would be, and what a job it would be for the next edition of 'The Principles,' if he were "PERverted." But he is most candid and honest, and I think will end by being PERverted. Dr. Hooker has become almost as heterodox as you or I, and I look at Hooker as BY FAR the most capable judge in Europe.
Most cordially do I wish you health and entire success in all your pursuits, and, God knows, if admirable zeal and energy deserve success, most amply do you deserve it. I look at my own career as nearly run out.
If I can publish my Abstract and perhaps my greater work on the same subject, I shall look at my course as done.
Believe me, my dear sir, yours very sincerely, C. DARWIN.
CHARLES DARWIN TO J.D. HOOKER.
Down, March 2nd [1859].