I am sorry you have received so little information on the subject of our winds. I had once (before our revolution war) a project on the same subject. As I had then an extensive acquaintance over this State, I meant to have engaged some person in every county of it, giving them each a thermometer, to observe that and the winds twice a day, for one year, to wit, at sun-rise and at four P. M., (the coldest and the warmest point of the twenty-four hours,) and to communicate their observations to me at the end of the year. I should then have selected the days in which it appeared that the winds blew to a centre within the State, and have made a map of them, and seen how far they had analogy with the temperature of the air. I meant this to be merely a specimen to be communicated to the Philosophical Society at Philadelphia, in order to engage them, by means of their correspondents, to have the same thing done in every State, and through a series of years. By seizing the days when the winds centred in any part of the United States, we might, in time, have come to some of the causes which determine the direction of the winds, which I suspect to be very various. But this long-winded project was prevented by the war which came upon us, and since that I have been far otherwise engaged. I am sure you will have viewed the subject from much higher ground, and I shall be happy to learn your views in some of the hours of _délassement_, which I hope we are yet to pass together. To this must be added your observations on the new character of man, which you have seen in your journey, as he is in all his shapes a curious animal, on whom no one is better qualified to judge than yourself; and no one will be more pleased to participate of your views of him than one, who has the pleasure of offering you his sentiments of sincere respect and esteem. TO HENRY TAZEWELL. MONTICELLO, January 16, 1797.