I have written so lately that I have nothing to say about myself; my health prevented me going on with a crusade against "mihi" and "nobis," of which you warn me of the dangers. I showed my paper to three or four Naturalists, and they all agreed with me to a certain extent: with health and vigour, I would not have shown a white feather, [and] with aid of half-a-dozen really good Naturalists, I believe something might have been done against the miserable and degrading passion of mere species naming. In your letter you wonder what "Ornamental Poultry" has to do with Barnacles; but do not flatter yourself that I shall not yet live to finish the Barnacles, and then make a fool of myself on the subject of species, under which head ornamental Poultry are very interesting...
CHARLES DARWIN TO C. LYELL. The Lodge, Malvern [June, 1849].
...I have got your book ('A Second Visit to the United States.'), and have read all the first and a small part of the second volume (reading is the hardest work allowed here), and greatly I have been interested by it. It makes me long to be a Yankee. E. desires me to say that she quite "gloated" over the truth of your remarks on religious progress...I delight to think how you will disgust some of the bigots and educational dons. As yet there has not been MUCH Geology or Natural History, for which I hope you feel a little ashamed. Your remarks on all social subjects strike me as worthy of the author of the 'Principles.' And yet (I know it is prejudice and pride) if I had written the Principles, I never would have written any travels; but I believe I am more jealous about the honour and glory of the Principles than you are yourself...