To Bernhard Studer 13 August 
Down Farnborough Kent
My dear Sir
I have just received your note & heard with pleasure of your arrival in London.—. I suppose you received my letter addressed to Berne,1 in answer to yours, informing me of your intended visit to England. If you can spare the time, I should feel very great pleasure & honour in seeing you here at my house; if you cannot come here, & will be in town & at home on Monday morning, I will joyfully come up for the pleasure of making your acquaintance.— If you will favour me with a visit here, I will send my carriage to meet you half way. You would probably be glad to have your morning in London, & in that case if you will start by the Croydon Railway from London Bridge at 3o.15’, (from Hungerford St to London Bridge will take of hour in a cab) you will get to Croydon (fare only 1s”3d) at 3o, 45’, where my one horse phaeton shall be waiting for you, & it will bring you in one hour & a half to this house, in time for dinner. And you can return the same way any day you like.—
Will you be so kind as to write me a note on Saturday morning, which I shall get on Sunday & will either come up myself, (if you remain in town) or gladly send my phaeton to meet you at Croydon. The distance is too great for you to come here & return the same day.—
You will have received incomparably better advice & assistance from Mr L. Horner & others than I can give; but if you have not seen Mr. Daniel Sharpe of 2. Adelphi Terrace, Strand, I would advise you to call on him, as he knows well Wales & has attended to cleavage: I informed him of your expected arrival.— If you intend travelling in Wales, I wd. advise you strongly to join for a time the Ordnance Survey2 & see them at work. When I heard of your intended visit, I wrote to Sir H. Delabeche,3 & he has given me instructions, how to find out where the party is, & if you like to join them, I can put you on the way.
I am well aware how little use I can be of, but if you can suggest anything, I shall be much pleased.— Have you Murchis〈on’s〉 Silurian System?4 if not, would you like to borrow from me the maps, they would perhaps be useful to you, in travelling.—
With much respect | Believe me | dear Sir | Yours very faithfully | C. Darwin To | Prof. B. Studer | &c &c &c
Invites BS to visit Down. Advises him to call on Daniel Sharpe. Suggests he see the work of the Ordnance Survey in Wales.
Offers to lend him Murchison’s The Silurian system [3 vols. (1839)].