“I am positively assured,” he said, “that from one day to another will embark from New York for New Orleans, to join Colonel Burr in Louisiana, three of his intimate friends, depositaries of his whole confidence; namely, Mr. Swartwout, lately marshal of the district of New York, a certain Dr. Erwin, and the famous Colonel Smith, the same who was implicated in the business of Miranda, and whose son went out as an aide-de-camp of that adventurer. Accordingly I wrote to the governors of both Floridas and to the Viceroy of Mexico, giving them a general idea of this affair, and recommending them to watch the movements of Colonel Burr and of his adventurers. This is an excess of precaution, since by this time they must not only know through the New Orleans and Natchez newspapers of the projects attributed to Colonel Burr, but also through the confidential channel of the No. 13 of the Marquis of Casa Calvo’s cipher with the Prince of Peace, who is one of the conspirators, and who is to contribute very efficaciously to the execution of the scheme in case it shall be carried into effect.” The person designated as No. 13 in the cipher used between Casa Calvo and Godoy was the general-in-chief of the American forces, Wilkinson. The Marquis’s despatch next mentioned the arrival of De Pestre, who appeared about November 27 at Yrujo’s house:-- “About a week ago a former French officer came to see me, one of Burr’s partisans, who came from Kentucky in search of various articles for the execution of his undertaking.... This officer handed me a letter from Colonel Burr, in which, after recommending him to me, the writer said simply that as this person had lately visited those States, he could give me information about them worthy of my curiosity. The date of this letter was Lexington, October 25.” De Pestre gave to Yrujo the assurance that all was going well with the undertaking; but the special message he was charged to deliver seemed to be the following:--