My dear Sir

I have received safely all five numbers of your work “Der Mensch” & your obliging note of Jan. 28.² I have not as yet had time to do more than turn over the pages of the four latter numbers; nor shall I be able for some little time, as my health is weak, but when I do read them I have no doubt I shall find interesting matter, & I thank you sincerely for sending them to me.

Your letter contained several points new to me. I was not aware that Rütimeier for whom I feel much respect, had ever expressed himself on the subject of the modification of species.³ I am sorry to hear what you tell me about D^r Weinland & Jager⁴ I am not at all surprized at what you say about disagreeing with me on some points, for no two men c^d think independently on so complex a subject without differing to a certain extent⁵

With my best thanks for your kindness pray believe me my dear Sir | yours very faithfully | Ch. Darwin