My dear Darwin

You will I have no doubt be surprised when I tell you that it is most probable I shall shortly leave England as Commodore to command the Squadron on West Coast of S america ²   The Station being from Equator to Cape Horn. The Admiral taking the North Pacific— Will it not be singular if should once more go over our old ground—³ The fact is I have been for more than two months suffering from Bronchial complaint which though slight will not get better as every time it seems better I get a fresh cold. about six weeks since I was very unwell. I was saying at home that as it was the third winter I had been so frequently attacked this way I should have to avoid the winter in England—& I wished there was any appointment in a good climate that I could get as it would set me up again as twice I had been set up by going to S america   But I knew of nothing likely and therefore we were seriously discussing my having to give up before next winter. The very next day I saw in the paper that a Commodore was to be sent to the Chili Station. It seemed of all things the very best as it would also enable me to serve my time for Active Flag, which next winter would be too late for.⁴ after hesitating for several days I found no one was nominated, so I went in for it—and at first thought it was quite settled, for Senior Naval Lord & Private Secy—both nominated me for it to First Lord, which is generally conclusive,⁵ but they first postponed the app^t. to April on account of the financial years account preventing their doing it this year—and also to prepare a ship, and then they would not tell me if I were to go or not but I have heard some interest was rising for another— However as four admirals at adm^y have concurred in telling 1^st Lord I have a stronger claim to it than any one, and as the Senior Naval Lord has told me what the limits of station are & other particulars it ought to be pretty certain. I have also heard from several that it is said at admiralty I am to go: and so it rests till March.

I have not spoken about it outside Admiralty—for if I do not get it I would rather it was not generally known, so I only tell you for your private information that you may turn over in your all mind all the Geological instructions you wish to give me. The ship will be “Curacoa” a Screw frigate, and if I go I shall probably go through Straits of M. and so see much of our old ground—⁶

If they will give me leave my wife⁷ and girls will go with me as the Sea Voyage & the climate of Valpo⁸ might do the girls much good.

I hope you are better now—& that our talking so much did not do you any more than a Scrap of injury. I hear that Wickham and his family have not been well in France⁹

with kind regards to all Your family believe me | Yours very sin^y | B J Sulivan