In the account I gave you in my last of my friend Ples circumstances I confounded them with those of another family. instead of 6,000 boars his father has but little more than 3,000, so that there comes but 2,000 to him. In other respects I believe the account I gave you was just It was not necessary I should have troubled myself with saying anything about the matter but as I did I dont like to have represented it falsely. Correct therefore my last letter immediately. In my letters now I shall always suppose that you have determined upon coming here this Summer and are provided with the means in the manner I pointed out. I shall therefore always have a letter begun for you lying by me or in my pocket and clap down in it whatever happens to occur to me relating to your expedition. I am very much affraid that Code is not as yet finished and that on that account you wont be able to think of coming till after the last post which may be supposed to carry it to Bern in time. If it is finished so far as to have no further occasion for books — no. if it be entirely finished and has passed Wilson's examination, then if you have nothing to prevent you, set off for Holland as soon as possible, you would like perhaps to go to Rotterdam to see Strachan however hasten as much as possible to Amsterdam. There you will find (unless the man should be dead out of spite) the man of all men to afford you usefull information. There if you can get enough into his good graces for him not to be or frightened by the infinity of questions you would wish to put him I am sure you will receive the greatest satisfaction. You might humble yourself in the manner the most flattering to him, I mean by giving him to understand that it is him alone that you would so humble yourself. If you could get him by any means to look over Code or rather to read it with him, you certainly would receive very great advantages from it. The general idea of the development of the principle of Utility in a stead uniform and impartial manner, is certainly what you have stronger and more deeply implanted in you than any body else. but with respect to the practical possibility of creating such laws depending on the disposition of the Govern er's & Govern ed: as well as abundance of curious facts from which the calculation must be made of the quantity of happiness or unhappiness which a given mode of conduct would produce: depending upon prejudice & customs in such practical considerations as these he must from his great experience & discernment be able to give you great assistance. From Amsterdam if you must be straightened for time you can be more certain of the time of its arrival at Berne than you could from England on account of the crossing the Sea. When you have dispatched Code you would then set off for Hambourg I suppose by land, on your arrival there you would beg Hanbury to write to his correspondent at Luba to let you know when there is a Vessel sails for Petersbourg and stay at Hambourg two or three days till you get information of the day of sailing. There are I dare to say 2 or 3 vessels every week which make that passage especially at that time of the year. I forgot to tell you in my last the little difference that there would be in our joint expences here and those which I must necessarily be at alone to answer any purpose by my being here. W is between 40 and 50£ besides the expence of your cloaths

which I have all along considered as separate but which cannot be considered as such entirely as they would likewise be of great use to you at your return. As I can see myself no other impediment to your coming but the expence I cannot but depend upon your coming. You cannot conceive the advantageous circumstances which I am in and the still greater which I shall most likely be in for gaining usefull experience. The swing into gizards and the observation of springs, as well as the acquaintance with facts. My circumstances I mean chiefly acquaintances and connections. Petersburg April 4 OS 1780. I may probably give you a few lines more next post and then I shall tell you how I shall contrive to make my letters stop in Holland upon the chance of your going there when they contain any thing I amy have to say to you there, and shall at the same time tell you what you must do to prevent their laying there in case of your not going. All this in my next.