I have also been very glad to read your argument on the denudation of the Weald, and your excellent resume on the Purbeck Beds; and this is the point at which I have at present arrived in your book. I cannot say that I am quite convinced that there is no connection beyond that pointed out by you, between glacial action and the formation of lake basins; but you will not much value my opinion on this head, as I have already changed my mind some half-dozen times.
I want to make a suggestion to you. I found the weight of your volume intolerable, especially when lying down, so with great boldness cut it into two pieces, and took it out of its cover; now could not Murray without any other change add to his advertisement a line saying, "if bound in two volumes, one shilling or one shilling and sixpence extra." You thus might originate a change which would be a blessing to all weak-handed readers.
Believe me, my dear Lyell, Yours most sincerely, CHARLES DARWIN.
Originate a second REAL BLESSING and have the edges of the sheets cut like a bound book. (This was a favourite reform of my father's. He wrote to the "Athenaeum" on the subject, February 5, 1867, pointing out how that a book cut, even carefully, with a paper knife collects dust on its edges far more than a machine-cut book. He goes on to quote the case of a lady of his acquaintance who was in the habit of cutting books with her thumb, and finally appeals to the "Athenaeum" to earn the gratitude of children "who have to cut through dry and pictureless books for the benefit of their elders." He tried to introduce the reform in the case of his own books, but found the conservatism of booksellers too strong for him. The presentation copies, however, of all his later books were sent out with the edges cut.)CHARLES DARWIN TO JOHN LUBBOCK.
Down, June 11 [1865].
My dear Lubbock, The latter half of your book ('Prehistoric Times,' 1865.) has been read aloud to me, and the style is so clear and easy (we both think it perfection) that I am now beginning at the beginning. I cannot resist telling you how excellently well, in my opinion, you have done the very interesting chapter on savage life. Though you have necessarily only compiled the materials the general result is most original. But I ought to keep the term original for your last chapter, which has struck me as an admirable and profound discussion. It has quite delighted me, for now the public will see what kind of man you are, which I am proud to think Idiscovered a dozen years ago.
I do sincerely wish you all success in your election and in politics; but after reading this last chapter, you must let me say: oh, dear! oh, dear! oh dear!
Yours affectionately, CH. DARWIN.
P.S.--You pay me a superb compliment ('Prehistoric Times,' page 487, where the words, "the discoveries of a Newton or a Darwin," occur.), but I fear you will be quizzed for it by some of your friends as too exaggerated.
[The following letter refers to Fritz Muller's book, 'Fur Darwin,' which was afterwards translated, at my father's suggestion, by Mr. Dallas. It is of interest as being the first of the long series of letters which my father wrote to this distinguished naturalist. They never met, but the correspondence with Muller, which continued to the close of my father's life, was a source of very great pleasure to him. My impression is that of all his unseen friends Fritz Muller was the one for whom he had the strongest regard. Fritz Muller is the brother of another distinguished man, the late Hermann Muller, the author of 'Die Befruchtung der Blumen,' and of much other valuable work:]
CHARLES DARWIN TO F. MULLER.
Down, August 10 [1865].
My dear Sir, I have been for a long time so ill that I have only just finished hearing read aloud your work on species. And now you must permit me to thank you cordially for the great interest with which I have read it. You have done admirable service in the cause in which we both believe. Many of your arguments seem to me excellent, and many of your facts wonderful. Of the latter, nothing has surprised me so much as the two forms of males. I have lately investigated the cases of dimorphic plants, and I should much like to send you one or two of my papers if I knew how. I did send lately by post a paper on climbing plants, as an experiment to see whether it would reach you. One of the points which has struck me most in your paper is that on the differences in the air-breathing apparatus of the several forms. This subject appeared to me very important when I formerly considered the electric apparatus of fishes. Your observations on Classification and Embryology seem to me very good and original. They show what a wonderful field there is for enquiry on the development of crustacea, and nothing has convinced me so plainly what admirable results we shall arrive at in Natural History in the course of a few years. What a marvellous range of structure the crustacea present, and how well adapted they are for your enquiry! Until reading your book I knew nothing of the Rhizocephala; pray look at my account and figures of Anelasma, for it seems to me that this latter cirripede is a beautiful connecting link with the Rhizocephala.
If ever you have any opportunity, as you are so skilful a dissector, I much wish that you would look to the orifice at the base of the first pair of cirrhi in cirripedes, and at the curious organ in it, and discover what its nature is; I suppose I was quite in error, yet I cannot feel fully satisfied at Krohn's (See vol. ii., pages 138, 187.) observations. Also if you ever find any species of Scalpellum, pray look for complemental males;a German author has recently doubted my observations for no reason except that the facts appeared to him so strange.
Permit me again to thank you cordially for the pleasure which I have derived from your work and to express my sincere admiration for your valuable researches.
Believe me, dear Sir, with sincere respect, Yours very faithfully, CH. DARWIN.