So far as knowledge goes it is mere prodigality spending one's capital and adding nothing, for I find the physical exertion of lecturing quite unfits me for much else. Fancy how last Friday was spent. I went to Jermyn Street in the morning with the intention of preparing for my afternoon's lecture. People came talking to me up to within a quarter of an hour of the time, so I had to make a dash without preparation. Then I had to go home to prepare for a second lecture in the evening, and after that I went to a soiree, and got home about one o'clock in the morning. I go on telling myself this won't do, but to no purpose. You will be glad to hear that my affairs here are finally settled, and I am regularly appointed an officer of the survey with the commission to work out the natural history of the coast. Edinburgh has been tempting me again, and in fact I believe I was within an ace of going there, but the Government definitely offering me this position, I was too glad to stop where I am. I can make six hundred a year here, and that being the case, I conceive I have a right to consult my own inclinations and the interest of my scientific reputation. The coast survey puts in my hands the finest opportunities that ever a man had, and it is a pity if I do not make myself something better than a Caledonian pedagogue. The great first scheme I have in connection with my new post is to work out the Marine Natural History of Britain, and to have every species of sea beast properly figured and described in the reports which I mean from time to time to issue. I can get all the engravings and all the printing I want done, but of course I am not so absurd as to suppose I can work out all these things myself. Therefore my notion is to seek in all highways and byways for fellow labourers. Busk will, I hope, supply me with figures and descriptions of the British Polyzoa and Hydrozoa, and I have confidence in my friend, Mr. Dyster of Tenby (are you presumptuous enough to say you know him?) for the Annelids, if he won't object to that mode of publishing his work. The Mollusks, the Crustaceans, and the Fishes, the Echinoderms and the Worms, will give plenty of occupation to the other people, myself included, to say nothing of distribution and of the recent geological changes, all of which come within my programme. Did I not tell you it was a fine field, and could the land o' cakes give me any scope like this? April 9, 1855. My dear Dyster, I didn't by any means mean to be so sphinx-like in my letter, though you have turned out an Oedipus of the first water. True it is that I mean to "range myself," "live cleanly and leave off sack," within the next few months--that is to say, if nothing happens to the good ship which is at present bearing my fiancee homewards.