In further testimony of our most attentive obsequiousness and sincere attachment, we have deputed our citizen, John Abraham de Boor, who is charged with the concerns of a considerable merchant house, which, like several other merchant houses of good report and solidity in this city, is desirous of entering with merchants of your country into reciprocal commerce. He is to have the honor to present to your High Mightinesses this our most obsequious missive; wherefore we most earnestly recommend him to your favorable reception. He has it from us in express charge, most respectfully to give your High Mightinesses, if required, such upright and accurate accounts of our situation and constitutions, as may be depended upon, and at the same time in person to testify the assurance of the most perfect respect and attachment, with which attentively we remain, Right Noble, High, Mighty, and most honorable Lords, your most obsequious and devoted Burgomaster and Senate of the Imperial free City of Hamburg. Given under our City Seal, the 29th of March, 1783. * * * * * DAVID HARTLEY TO B. FRANKLIN. London, March 31st, 1783. My dear Friend, I send you a paper entitled _Supplemental Treaty_, the substance of which I sent you some time ago, as I read it in part of a speech in the House of Commons. I have given a copy of it to Mr L., as the grounds upon which my friend, the Duke of Portland, would have wished that any administration, in which he might have taken a part, should have treated with the American Ministers. All negotiations for the formation of a Ministry in concert with the Duke of Portland are at an end. The tenth article, which is supposed to be referred to the definitive treaty, is a renewal of the same proposition, which I moved in Parliament some years ago, viz. on the 9th of April, 1778. I see nothing inconsistent with that proposition, either in the declaration of independence or in the treaty with France. Let it therefore remain, and emerge after the war, as a point untouched by the war. I assure you my consent should not be wanting to extend this principle between all the nations upon earth. I know full well, that those nations to which you and I are bound by birth and consanguinity, would reap the earliest fruits from it. _Owing no man hate, and envying no man's happiness_, I should rejoice in the lot of my own country, and on her part say to America, _Nos duo turba sumus_. I send you, likewise, enclosed with this, some sentiments respecting the principles of some late negotiations, drawn up in the shape of Parliamentary motions by my brother, who joins with me in the sincerest good wishes to you for health and happiness, and for the peace of our respective countries, and of mankind. Your ever affectionate, D. HARTLEY.