I believe that your pamphlet has done my book GREAT good; and I thank you from my heart for myself; and believing that the views are in large part true, I must think that you have done natural science a good turn. Natural Selection seems to be making a little progress in England and on the Continent; a new German edition is called for, and a French (In June, 1862, my father wrote to Dr. Gray: "I received, 2 or 3 days ago, a French translation of the 'Origin,' by a Madlle. Royer, who must be one of the cleverest and oddest women in Europe: is an ardent Deist, and hates Christianity, and declares that natural selection and the struggle for life will explain all morality, nature of man, politics, etc. etc.! She makes some very curious and good hits, and says she shall publish a book on these subjects." Madlle. Royer added foot-notes to her translation, and in many places where the author expresses great doubt, she explains the difficulty, or points out that no real difficulty exists.) one has just appeared. One of the best men, though at present unknown, who has taken up these views, is Mr. Bates; pray read his 'Travels in Amazonia,' when they appear; they will be very good, judging from MS. of the first two chapters. ... Again I say, do not hate me. Ever yours most truly, C. DARWIN. CHARLES DARWIN TO C. LYELL. 1 Carlton Terrace, Southampton (The house of his son William.), August 22, [1862]. ... I heartily hope that you (I.e. 'The Antiquity of Man.') will be out in October... you say that the Bishop and Owen will be down on you; the latter hardly can, for I was assured that Owen in his Lectures this spring advanced as a new idea that wingless birds had lost their wings by disuse, also that magpies stole spoons, etc., from a REMNANT of some instinct like that of the Bower-Bird, which ornaments its playing-passage with pretty feathers. Indeed, I am told that he hinted plainly that all birds are descended from one... Your P.S. touches on, as it seems to me, very difficult points. I am glad to see [that] in the 'Origin,' I only say that the naturalists generally consider that low organisms vary more than high; and this I think certainly is the general opinion. I put the statement this way to show that I considered it only an opinion probably true. I must own that I do not at all trust even Hooker's contrary opinion, as I feel pretty sure that he has not tabulated any result. I have some materials at home, I think I attempted to make this point out, but cannot remember the result. Mere variability, though the necessary foundation of all modifications, I believe to be almost always present, enough to allow of any amount of selected change; so that it does not seem to me at all incompatible that a group which at any one period (or during all successive periods) varies less, should in the long course of time have undergone more modification than a group which is generally more variable.