Again I have to thank you for one of your very pleasant letters of May 7th, enclosing a very pleasant remittance of 22 pounds. I am in simple truth astonished at all the kind trouble you have taken for me. I return Appleton's account. For the chance of your wishing for a formal acknowledgment I send one. If you have any further communication to the Appletons, pray express my acknowledgment for [their] generosity; for it is generosity in my opinion. I am not at all surprised at the sale diminishing; my extreme surprise is at the greatness of the sale. No doubt the public has been SHAMEFULLY imposed on! for they bought the book thinking that it would be nice easy reading. I expect the sale to stop soon in England, yet Lyell wrote to me the other day that calling at Murray's he heard that fifty copies had gone in the previous forty-eight hours. I am extremely glad that you will notice in 'Silliman' the additions in the 'Origin.' Judging from letters (and I have just seen one from Thwaites to Hooker), and from remarks, the most serious omission in my book was not explaining how it is, as I believe, that all forms do not necessarily advance, how there can now be SIMPLE organisms still existing... I hear there is a VERY severe review on me in the 'North British,' by a Rev. Mr. Dunns (This statement as to authorship was made on the authority of Robert Chambers.), a Free Kirk minister, and dabbler in Natural History. I should be very glad to see any good American reviews, as they are all more or less useful. You say that you shall touch on other reviews. Huxley told me some time ago that after a time he would write a review on all the reviews, whether he will I know not. If you allude to the 'Edinburgh,' pray notice SOME of the points which I will point out on a separate slip. In the "Saturday Review" (one of our cleverest periodicals) of May 5th, page 573, there is a nice article on [the 'Edinburgh'] review, defending Huxley, but not Hooker; and the latter, I think, [the 'Edinburgh' reviewer] treats most ungenerously. (In a letter to Mr. Huxley my father wrote: "Have you seen the last "Saturday Review"? I am very glad of the defence of you and of myself. I wish the reviewer had noticed Hooker. The reviewer, whoever he is, is a jolly good fellow, as this review and the last on me showed. He writes capitally, and understands well his subject. I wish he had slapped [the 'Edinburgh' reviewer] a little bit harder.") But surely you will get sick unto death of me and my reviewers.