It was amusing to listen to the diversity of opinions entertained by our party relative to Rousseau, as we wandered through the scenes which he so often frequented; each individual censuring or defending him, according to the bias of his or her disposition. On one point all agreed; which was, that, if judged by his actions, little could be said in mitigation of the conduct of him who, while writing sentiments fraught with passion and tenderness, could consign his offspring to a foundling hospital! Having visited every object worthy of attention at Montmorency, we proceeded to Enghien, to examine the baths established there. The building is of vast extent, containing no less than forty chambers, comfortably furnished for the accommodation of bathers; and a good _restaurateur_ furnishes the repasts. The apartments command a beautiful view, and the park of St.-Gratien offers a delightful promenade to the visitors of Enghien. Our route back to Paris was rendered very agreeable by the lively and clever conversation of the Comtesse de Gand. I have rarely met with a more amusing person. With a most retentive memory, she possesses the tact that does not always accompany this precious gift--that of only repeating what is perfectly _à propos_ and interesting, with a fund of anecdotes that might form an inexhaustible capital for a professional diner-out to set up with; an ill-natured one never escapes her lips, and yet--hear it all ye who believe, or act as if ye believe, that malice and wit are inseparable allies!--it would be difficult to find a more entertaining and lively companion. Our old friend, Col. E. Lygon, came to see us to-day, and is as amiable as ever. He is a specimen of a military man of which England may well be proud. The Ducs de Talleyrand and Dino, the Marquis de Mornay, the Marquis de Dreux-Brezé, and Count Charles de Mornay, dined here yesterday. The Marquis de Brezé is a clever man, and his conversation is highly interesting. Well-informed and sensible, he has directed much of his attention to politics without being, as is too often the case with politicians, wholly engrossed by them. He appears to me to be a man likely to distinguish himself in public life. There could not be found two individuals more dissimilar, or more formed for furnishing specimens of the noblemen of _la Vieille Cour_ and the present time, than the Duc de Talleyrand and the Marquis de Dreux-Brezé. The Duc, well-dressed and well-bred, but offering in his toilette and in his manners irrefragable evidence that both have been studied, and his conversation bearing that high polish and urbanity which, if not always characteristics of talent, conceal the absence of it, represents _l'ancien régime_, when _les grands seigneurs_ were more desirous to serve _les belles dames_ than their country, and more anxious to be distinguished in the _salons_ of the Faubourg St.-Germain than in the _Chambre de Parlement_.