My dear Hooker,
Here is an odd, though very little, fact. I think it would be hardly possible to name a bird which apparently could have less to do with distribution than a Petrel. Sir W. Milner, at St. Kilda, cut open some young nestling Petrels, and he found large, curious nuts in their crops; I suspect picked up by parent birds from the Gulf stream. He seems to value these nuts excessively. I have asked him (but I doubt whether he will) to send a nut to Sir William Hooker (I gave this address for grandeur sake) to see if any of you can name it and its native country. Will you PLEASE MENTION this to Sir William Hooker, and if the nut does arrive, will you oblige me by returning it to "Sir W. Milner, Bart., Nunappleton, Tadcaster," in a registered letter, and I will repay you postage. Enclose slip of paper with the name and country if you can, and let me hereafter know. Forgive me asking you to take this much trouble; for it is a funny little fact after my own heart.
Now for another subject. I have finished my Abstract of the chapter on Geographical Distribution, as bearing on my subject. I should like you much to read it; but I say this, believing that you will not do so, if, as I believe to be the case, you are extra busy. On my honour, I shall not be mortified, and I earnestly beg you not to do it, if it will bother you. I want it, because I here feel especially unsafe, and errors may have crept in. Also, I should much like to know what parts you will MOST VEHEMENTLY object to. I know we do, and must, differ widely on several heads. Lastly, I should like particularly to know whether I have taken anything from you, which you would like to retain for first publication; but I think I have chiefly taken from your published works, and, though I have several times, in this chapter and elsewhere, acknowledged your assistance, I am aware that it is not possible for me in the Abstract to do it sufficiently. ("I never did pick any one's pocket, but whilst writing my present chapter I keep on feeling (even when differing most from you) just as if I were stealing from you, so much do I owe to your writings and conversation, so much more than mere acknowledgments show."--Letter to Sir J.D. Hooker, 1859.) But again let me say that you must not offer to read it if very irksome. It is long--about ninety pages, I expect, when fully copied out.
I hope you are all well. Moor Park has done me some good.
Yours affectionately, C. DARWIN.
P.S.--Heaven forgive me, here is another question: How far am I right in supposing that with plants, the most important characters for main divisions are Embryological? The seed itself cannot be considered as such, I suppose, nor the albumens, etc. But I suppose the Cotyledons and their position, and the position of the plumule and the radicle, and the position and form of the whole embryo in the seed are embryological, and how far are these very important? I wish to instance plants as a case of high importance of embryological characters in classification. In the Animal Kingdom there is, of course, no doubt of this.
CHARLES DARWIN TO J.D. HOOKER. Down, March 5th [1859].
My dear Hooker,
Many thanks about the seed...it is curious. Petrels at St. Kilda apparently being fed by seeds raised in the West Indies. It should be noted whether it is a nut ever imported into England. I am VERY glad you will read my Geographical MS.; it is now copying, and it will (I presume) take ten days or so in being finished; it shall be sent as soon as done...
I shall be very glad to see your embryological ideas on plants; by the sentence which I sent you, you will see that I only want one sentence; if facts are at all, as I suppose, and I shall see this from your note, for sending which very many thanks.
I have been so poorly, the last three days, that I sometimes doubt whether I shall ever get my little volume done, though so nearly completed...
CHARLES DARWIN TO J.D. HOOKER. Down, March 15th [1859].
My dear Hooker,
I am PLEASED at what you say of my chapter.