In this speech Mr. Adams exposes the effects of the slave influence in the United States, by the measures taken to bring about a war with Mexico. 1. By the proposal that she should cede to us a territory large enough to constitute nine states equal in extent to Kentucky. 2. By making this proposition at a time when swarms of land-jobbers from the United States were covering these Mexican territories with slaves, in defiance of the laws of Mexico by which slavery had been abolished throughout that republic. 3. By the authority given to General Gaines to invade the Mexican republic, and which had brought on the war then raging, which was for the reestablishment of slavery in territories where it had been abolished. It was a war, on the part of the United States, of conquest, and for the extension of slavery. Mr. Adams then foretold, what subsequent events proved, that the war then commencing would be, on the part of the United States, "a war of aggression, conquest, and for the reestablishment of slavery where it has been abolished. In that war the banners of _freedom_ will be the banners of Mexico, and your banners--I blush to speak the word--will be the banners of slavery." The nature of that war, its dangers, and its consequences, Mr. Adams proceeded to analyze, and to show the probability of an interference on the part of Great Britain, who "will probably ask you a perplexing question--by what authority you, with freedom, independence, and democracy, on your lips, are waging a war of extermination, to forge new manacles and fetters instead of those which are falling from the hands and feet of men? She will carry emancipation and abolition with her in every fold of her flag; while your stars, as they increase in numbers, will be overcast by the murky vapors of oppression, and the only portion of your banners visible to the eye will be the blood-stained stripes of the taskmaster."