104 University of California Publications in History *Adams, Memoirs, IV:42; Adams to Onis, January 16, 1818, in A.8.P., FB., IV:463-464. SOnis to Adams, January 24, 1818, ibid., pp. 464-467. The date of this note later became important as that on which the validity of land grants in Florida was to be based. Onis to Pizarro, January 28, 1818, in A.H.N, Eat., 5643. Adams to Ones, March 18, 1818, in A.S.P., P.R., IV:470. Adams, Memoirs, IV:51-61. Adams to Ons, March 12, 1818, in AJS.P., ., IV:468. SOnis to Adams, March 23, 1818, ibid., pp. 483-484. On the point to which Adams referred, Father Hennepin appears to have been correct, though his- torians have disproved some of his statements. "Erving to Adams, June 12, 1818, in D.8., Despatches, Spain, XV. Adam to Erving, April 20, 1818, in D.S., United States Ministers, In- structions, VIII. Presumably Adams overlooked Pike's map, which bears such a name, and which had been published in 1810. S"B"l sevo Mexico y tierras adyactes, mapO levastado ... por el P. D. Jo8d Pichardo," section printed in Joe6 A. Piehardo, Piohardo's Treatise on the Limits of Louisiana and T'eas, Charles W. Hackett, ed. (Austin, Texas, 1931-), 1:474. For example, Alexandre de Humboldt, Carte do Mexique (Paris, 1811). John Melish, Map of the United Btates (Philadelphia, 1816). 7 Zebulon M. Pike, Map of the Interal Provinces of New Spam (Phila- delphia, 1810). Onis to Pizarro, March 11, 1818, in A.H.N., Est., 5644. Resolution of Senate Committee on Foreign Belations, March 24, 1818, in A.B.P., F.., IV:153-154. Onis to Pizarro, February 27, 1818, in A.H.N., Est., 5644. Onis to Pizarro, April 21, 1818, ibid., 5643. SOnis to San Carlos, January 3, 1815, ibid., 5640. Adams to Onis, April 11, 1818, in D.S., Notes to Foreign Legations, 1I.