It was during this confinement that he wrote the principal part of his "Notes on Virginia." He had been in the habit of committing to writing any information about the State which he thought would be of use to him in any station, public or private; and receiving a letter from M. De Marbois, the French ambassador, asking for certain statistical accounts of the State of Virginia, he embodied the substance of the information he had so acquired and sent it to him in the form of the "Notes on Virginia." A charming picture of Monticello and its inmates at that day is found in "Travels in North America, by the Marquis De Chastellux." This accomplished French nobleman visited Jefferson in the spring of 1782. After describing his approach to the foot of the southwest range of mountains, he says: On the summit of one of them we discovered the house of Mr. Jefferson, which stands pre-eminent in these retirements; it was himself who built it, and preferred this situation; for although he possessed considerable property in the neighborhood, there was nothing to prevent him from fixing his residence wherever he thought proper. But it was a debt Nature owed to a philosopher, and a man of taste, that in his own possessions he should find a spot where he might best study and enjoy her. He calls his house _Monticello_ (in Italian, Little Mountain), a very modest title, for it is situated upon a very lofty one, but which announces the owner's attachment to the language of Italy; and, above all, to the fine arts, of which that country was the cradle, and is still the asylum. As I had no further occasion for a guide, I separated from the Irishman; and after ascending by a tolerably commodious road for more than half an hour we arrived at Monticello. This house, of which Mr. Jefferson was the architect, and often one of the workmen, is rather elegant, and in the Italian taste, though not without fault; it consists of one large square pavilion, the entrance of which is by two porticoes, ornamented with pillars. The ground-floor consists of a very large lofty saloon, which is to be decorated entirely in the antique style; above it is a library of the same form; two small wings, with only a ground-floor and attic story, are joined to this pavilion, and communicate with the kitchen, offices, etc., which will form a kind of basement story, over which runs a terrace. My object in this short description is only to show the difference between this and the other houses of the country; for we may safely aver that Mr. Jefferson is the first American who has consulted the fine arts to know how he should shelter himself from the weather.