I am rewriting my article on Birds' Nests for the new Natural History Review.

I cannot tell you about the first appearance of tears, but it is very early—the first week or two, I think. I can see the Victoria Institute Magazine at the London Library.

I shall read your book, every word. I hear from Sir C. Lyell that you come out with a grand new theory at the end, which even the cautious (!) Huxley is afraid of! Sir C. said he could think of nothing else since he read it. I long to see it.

My address is Hurstpierpoint during the winter, and, when in town, 76-1/2 Westbourne Grove.

I suppose you will now be going on with your book on Sexual Selection and Man, by way of relaxation! It is a glorious subject, but will require delicate handling,—Yours very faithfully,

ALFRED R. WALLACE.

10 Duchess Street, W. February 7, 1868.

Dear Darwin,—I have to thank you for signing the Memorial as to the East London Museum, and also for your kindness in sending me a copy of your great book, which I have only just received. I shall take it down in the country with me next week, and enjoy every line at my leisure.

Allow me also to congratulate you on the splendid position obtained by your second son at Cambridge.