My dear Sir
I am very much obliged for your magnificent present of your Cosmical Philosophy, received this morning.2 On turning over the pages, I see that there is a good deal beyond my scope; not but what I shall attempt to grapple with the stiffest parts; but there are other subjects which I feel sure will deeply interest me. Good Heavens what labour the book must have cost you.— I sincerely hope that it may be in every way successful, & with my cordial thanks
I remain, my dear Sir | Yours sincerely | Charles Darwin
Please cite as “DCP-LETT-9706,” in Ɛpsilon: The Charles Darwin Collection accessed on