Mexican Abhorrence Of Slavery Extension

Washington, July 12, 1818. Public attcntion has not been sufficiently callecl to tlio í'act thüt in tlie ncgotiations bclween Mr. Tnst and tlio Mexican Coirtnissioners, the strongest repugnance was manifestcd by the Mexican Commissioners to the cession of teri-ttory witli the prospect ofllie introduction of slaverv tlicrcm. The following is au extract l'rora Trift's letter to Mr. Buclianan, daled September 4, 1S-17 : "Atnong the points which carne under discussion was the exclusión of Slavery from al! itirritory which should pass from Mexico. In the coursH of thetr remarks on the subject, 1 was told ihat if it were proposed to the poojile of the United States to part with a portion of their territory in order that XÏto Inquisilion should be tliercin established, the proposal co'd not excite stronger fcelings of aiihoruence, llian those awakened in Mexico by the prospect of the ititroduclion of Slavery in any territory parted wilh by her. Our conversation on thu topic was perfectly frank. " I concluded by asstiring thetn that the hare mextiox of the subject in anv Treaty to which ihfi Uritcd States was a party, was au absolute "irnpossibiüty ; that no President of the United Stiltes would daro to present any such Treaty in the Sonate ; and that if it were in llicir power to ofler me the whole territory described in our project, increased teh-fold in value, and, in addiüon to that, covercd afoot thick all over with pure gold, upon the single condilion that. Shivery should be excluded therrfrom, I could not entertain the offer for a moment, nor think even of communicating it to Wasihington," IIow will the American people stand in the i'Slimation f the wholo civilizod world iflhcy chall extend the curse of Slavery over Tenitorv thus acijuired, and inflict lts evils upon the Mexican population, who have been transfern il not only without their asserit, but agaiust