My dear Henslow

I was very glad to receive your letter. I wanted much to hear how you were getting on with your manifold labours.— Indeed I do not wonder you head began to ache; it is almost a wonder you have any head left.— Your account of the Gamblingay expedition was cruelly tempting, but I cannot anyhow leave London.— I wanted to pay my good dear people at Shrewsbury a visit of a few days but I found I could not manage it.— At present I am waiting for the signatures of the Duke of Somerset as President of the Linnæan; of L^d Derby & Whewell, to a statement of the value of my collection; the instant I get this, I shall apply to goverment, for assistance in engraving & to publish the Zoology on some uniform plan.— It is quite ridiculous the time any operation requires, which depends on many people.— M^r Brown has been taking a good deal of interest in my affairs & in a most kind manner. I want therefore to oblige him any way I can.— He was much pleased with the fossil woods & has gone to the expence of having several of them cut & ground.— The clump of trees which were growing vertically are allied to Araucaria, but in some respect resembling yews.—¹ Some of the good wise people, till seeing the wood, thought I had mistaken calcareous concretions for silicified trees!— M^r Brown is very curious about the fungi from the beech trees in T. del Fuego.— He has some specimens, but is very curious to see mine, but I do not know whether he wants to describe them: as your hands are so full, would you object to send them to me, & allow M^r Brown to do what he likes with them.— If you particularly care about them, of course do not send them, but otherwise I should be glad to oblige M^r Brown.— I have introduced my imperfect account of them in my journal.—² so that I should for my own sake be glad of M^r Brown’s inspection soon. —

I have been working very steadily, but have only got two thirds through the journal part alone.— I find though I remain daily many hours at work the progress is very slow:—it is an awful thing to say to oneself, every fool and every clever man in England, if he chooses, may make as many illnatured remarks as he likes on this unfortunate sentence.

There is a very remote possibility of my publishing my part before the Captains, in which case it would be out this summer.—³ There are about half a dozen plants, of which if I do not know the names of genus or something about them, I must strike out long passages in my journal.— Will you have the kindness to tell me; a week or ten days before you leave Cambridge; so that those questions which are most indispensible to me; perhaps you would not grudge one day in answering.— This is in case I publish before autumn, otherwise when you return will be soon enough for me.— I have not begun my geology yet!, though indeed I have been far from idle.— I give abstracts in my journal which cost much time.— I am greatly obliged to you, for talking with the Dons about the publication of my geology; the more I see of things the greater difficulty I anticipate on any other method.— Having seen a very great deal of Lyell, who is a most kind friend, I entertain great hopes that my geology will be of service.— I grieve to hear that the London University scheme will not bring you often to London.— But I will pay Cambridge a visit before very long & we will have one more of those goods walks, that I used often to think of at the antipodes, as indeed I now do.—

Eyton is up here and working away famously.—⁴ He tells me to say that he has bought Freycinets voyage of L’Uranie,⁵ and that he has 120 folio uncoloured plates and a quarto of letter press with a few pages imperfect at beginning, & he says anyone may have them for three pounds.— I forgot to ask you: if I succeed with government and if afterwards it appears advisable, should you object to publish the botany of the Galapagos in it: as part of the fauna?— I certainly should like, if possible, some part of the botany kept together, where there are materials for any general result.—⁶

Dont trouble yourself to answer this letter, for every five minutes must be precious to you.— Pray remember me most kindly to M^rs. Henslow. Ever yours most truly | C. Darwin—

Remember me to L. Jenyns.— I daresay he is with you this very day at Gamblingay.— I wish I was: how pleasant a good ramble would be in those nice woods. If you decide to send the fungi, will you send them soon by coach.—