TO CAPTAIN LEWIS.
Washington, November 16, 1803.
Dear Sir,—I have not written to you since the 11th and 15th of July, since which yours of July 18, 22, 25, September 8, 13, and October 3, have been received. The present has been long delayed by an expectation daily of getting the enclosed account of Louisiana through the press. The materials are received from different persons, of good authority. I enclose you also copies of the treaties for Louisiana, the act for taking possession, a letter from Dr. Wistar, and some information obtained by myself from Truteau's journal in MS., all of which may be useful to you. The act for taking possession passed with only some small verbal variations from that enclosed, of no consequence. Orders went from hence signed by the King of Spain and the first consul of France, so as to arrive at Natchez yesterday evening, and we expect the delivery of the province at New Orleans will take place about the close of the ensuing week, say about the 26th instant. Governor Claiborne is appointed to execute the powers of Commandant and Intendant, until a regular government shall be organized here. At the moment of delivering over the ports in the vicinity of New Orleans, orders will be despatched from thence to those in upper Louisiana to evacuate and deliver them immediately. You can judge better than I can when they may be expected to arrive at these ports, considering how much you have been detained by the low waters, how late it will be before you can leave Cahokia, how little progress up the Missouri you can make before the freezing of the river; that your winter might be passed in gaining much information, by making Cahokia or Caskaskia your head quarters, and going to St. Louis and the other Spanish forts, that your stores, &c. would thereby be spared for the winter, as your men would draw their military rations. All danger of Spanish opposition avoided, we are strongly of opinion here that you had better not enter the Missouri till the spring. But as you have a view of all circumstances on the spot, we do not pretend to enjoin it, but leave it to your own judgment in which we have entire confidence. One thing, however, we are decided in; that you must not undertake the winter excursion which you propose in yours of October 3d. Such an excursion will be more dangerous than the main expedition up the Missouri, and would by an accident to you, hazard our main object, which, since the acquisition of Louisiana, interests everybody in the highest degree. The object of your mission is single, the direct water communication from sea to sea formed by the bed of the Missouri, and perhaps the Oregon; by having Mr. Clarke with you we consider the expedition as double manned, and therefore the less liable to failure; for which reason neither of you should be exposed to risks by going off of your line. I have proposed in conversation, and it seems generally assented to, that Congress shall appropriate ten or twelve thousand dollars for exploring the principal waters of the Mississippi and Missouri. In that case, I should send a party up the Red river to its head, then to cross over to the head of the Arkansas, and come down that. A second party for the Pani and Padouca rivers, and a third, perhaps, for the Morsigona and St. Peter's. As the boundaries of interior Louisiana are the high lands enclosing all the waters which run into the Mississippi or Missouri directly or indirectly, with a quarter breadth on the Gulf of Mexico, it becomes interesting to fix with precision by celestial observations the longitude and latitude of the sources of these rivers, so providing points in the contour of our new limits. This will be attempted distinctly from your mission, which we consider as of major importance, and therefore, not to be delayed or hazarded by any episodes whatever.
The votes of both Houses on ratifying and carrying the treaties into execution, have been precisely party votes, except that General Dayton has separated from his friends on these questions, and voted for the treaties. I will direct the Aurora National Intelligencer to be forwarded to you for six months at Cadokie or Kaskaskia, on the presumption you will be there. Your friends and acquaintances here, and in Albemarle, are all well, so far as I have heard; and I recollect no other small news worth communicating. Present my friendly salutations to Mr. Clarke, and accept them affectionately yourself.