The letter from Mr. Jefferson to Mrs. Cosway containing the "Dialogue between the Head and Heart," though too long to be given here in full, is too beautiful to be omitted altogether. I accordingly give the following extracts: _Thomas Jefferson to Mrs. Cosway._ Paris, October 12, 1786. My dear Madam--Having performed the last sad office of handing you into your carriage at the Pavillon de St. Denis, and seen the wheels get actually in motion, I turned on my heel and walked, more dead than alive, to the opposite door, where my own was awaiting me. M. Danguerville was missing. He was sought for, found, and dragged down stairs. We were crammed into the carriage like recruits for the Bastile, and not having soul enough to give orders to the coachman, he presumed Paris our destination, and drove off. After a considerable interval, silence was broken, with a "_Je suis vraiment affligé du depart de ces bons gens_." This was a signal for a mutual confession of distress. He began immediately to talk of Mr. and Mrs. Cosway, of their goodness, their talents, their amiability; and though we spoke of nothing else, we seemed hardly to have entered into the matter, when the coachman announced the Rue St. Denis, and that we were opposite M. Danguerville's. He insisted on descending there and traversing a short passage to his lodgings. I was carried home. Seated by my fireside, solitary and sad, the following dialogue took place between my Head and my Heart. _Head._ Well, friend, you seem to be in a pretty trim. _Heart._ I am, indeed, the most wretched of all earthly beings. Overwhelmed with grief, every fibre of my frame distended beyond its natural powers to bear, I would willingly meet whatever catastrophe should leave me no more to feel, or to fear....