My dear Lyell

I returned home on Friday night & found here your present of your work;¹ I am very much obliged for it & now that I have it, I may say I am extremely glad that it is not merely a loan, as there is, I can perceive, much new which I shall want to refer to.— You have, not, however, sent the list of the new parts, as you promised, which I sh^d be glad of,² as I have not time at present to read it through; amongst other reasons Stokes³ having lent me the Annales des Sc. in 30 vols, which I must soon wade through.—⁴

I suppose you have commenced in earnest on your American work;⁵ I had hoped to have seen you in passing through London but I had a good deal to do, & have lately had much unwellness.— — I got R. Chambers to give me a sketch of Milne’s Glen Roy views⁶ & I have reread my paper,⁷ & am now, that I have heard what is to be said, not even staggered. It is provoking & humiliating to find that Chambers not only had not read with any care my paper on this subject or even looked at the coloured map, so that the new shelf, described by me,⁸ had not been searched for, & my arguments & facts of detail not in the least attended to.— I entirely gave up the ghost & was quite chicken-hearted at the Geolog. Soc., till you reassured me, & reminded me of the main facts in the whole case.—

I heartily hope the new Edit. of the Principles will have a large sale; my S. America has had an enormous sale according to my notions, 100 copies having been sold. By the way if you will send me the list of your additions, I will copy it (not lending it to anyone) & return the original to you.

My visit to Shrewsbury was rather a melancholy one, for though I found my Father better, he is much changed bodily during the last six months.

Farewell, my dear Lyell, with many thanks for your present. Yours ever | C. Darwin