I receive here, dear Sir, your favor of the 4th, just as I am preparing my return to Monticello for winter quarters, and I hasten to answer to some of your inquiries. The Tracy I mentioned to you is the one connected by marriage with Lafayette's family. The mail which brought your letter, brought one also from him. He writes me that he is become blind, and so infirm that he is no longer able to compose anything. So that we are to consider his works as now closed. They are three volumes of Ideology, one on Political Economy, one on Ethics, and one containing his Commentary on Montesquieu, and a little tract on Education. Although his commentary explains his principles of government, he had intended to have substituted for it an elementary and regular treatise on the subject, but he is prevented by his infirmities. His Analyse de Dupuys he does not avow. My books are all arrived, some at New York, some at Boston, and I am glad to hear that those for Harvard are safe also, and the Uranologia you mention without telling me what it is. It is something good, I am sure, from the name connected with it; and if you would add to it your fable of the bees, we should receive valuable instruction as to the Uranologia both of the father and son, more valuable than the Chinese will from our bible societies. These incendiaries, finding that the days of fire and fagot are over in the Atlantic hemisphere, are now preparing to put the torch to the Asiatic regions. What would they say were the Pope to send annually to this country, colonies of Jesuit priests with cargoes of their missal and translations of their Vulgate, to be put gratis into the hands of every one who would accept them? and to act thus nationally on us as a nation?