While at Monticello in August last I received your favor of August 8th, and meant to have acknowledged it on my return to the seat of government at the close of the ensuing month, but on my return I found that you were expected to be on here in person, and this expectation continued till winter. I have since received your favor of December 30th. In the former you mentioned the plan of the town which you had done me the honor to name after me, and to lay out according to an idea I had formerly expressed to you. I am thoroughly persuaded that it will be found handsome and pleasant, and I do believe it to be the best means of preserving the cities of America from the scourge of the yellow fever, which being peculiar to our country, must be derived from some peculiarity in it. That peculiarity I take to be our cloudless skies.
Ventilation is indispensably necessary.
Experience has taught us that in the open air of the country the yellow fever is not only not generated,but ceases to be infectious. The former was my idea, and is, I imagine, most convenient. Our system is to live in perpetual peace with the Indians, to cultivate an affectionate attachment from them, by everything just and liberal which we can do for them within the bounds of reason, and by giving them effectual protection against wrongs from our own people. The decrease of game rendering their subsistence by hunting insufficient, we wish to draw them to agriculture, to spinning and weaving. The latter branches they take up with great readiness, because they fall to the women, who gain by quitting the labors of the field for those which are exercised within doors.