Then it was that the great and patriotic men who carried the compromise of 1850, said to the South and to the North, we will henceforth make no line over the national domain to mark out the boundary between Free States and Slave States. Before the law of the Constitution, both Free States and Slave States are equal. The territory of which we are the trustees belongs neither to Northern institutions, nor to Southern institutions. We will not interfere, for we have no right to interfere, to give it exclusively to either. It is now free territory by the Mexican law. We will not extend slavery over it, nor will we exclude slavery from it; but we open the territory to citizens of all the States alike. It is their common property. The land is all before them where to choose; let them go in with their wives and their children, their men servants and their maid servants, their goods and their cattle, and the stranger that is within their gates, and form such domestic institutions as may suit their wants and desires, consistent with republican government and the Federal Constitution, which is for them, as for us, the supreme law. Let _the people_, who are to constitute States in all that wide domain, decide for themselves, for they will best know, what fundamental or temporary laws they want, and the Federal government will protect them in their free choice. When they come to us matured, as California now is, into republican States, we will admit them to our common Union on an equal footing with the original States in all respects whatsoever, "with or without slavery, as their Constitution may prescribe at the time of their admission." Here at last was found the true solution of the question of slavery in its relations to the Federal government, and it was adopted by the Congress and accepted by the nation; for both the Democratic and Whig parties, then the great dividing political parties, united upon it as common ground in the presidential canvass of 1852. One party, however, styling itself the _Free Soil Democracy_, the remnant of the party that had in 1848 supported Martin Van Buren for the presidency upon the Buffalo platform of "_no more Slave States--no more Slave Territory_," did meet in convention, at Pittsburgh, on 11th August, 1852, to denounce in no measured language the compromise of 1850 and slavery in general. I notice this party now only to refer you at your leisure to its platform, and to ask you to note that the President of the Convention was Henry Wilson of Massachusetts, and its nominees for President and Vice-President were John P. Hale of New Hampshire, and George W. Julian of Indiana. Two of these gentlemen are now Republican Senators in Congress, and the third, Mr. Julian, a member elect from Indiana to the House of Representatives in Congress. These gentlemen were known in 1852 as _Free Soil Abolitionists_, in 1860 they are known by the more fashionable and pleasant-sounding name of Republicans.