For the party in this country which has assumed the name of Democracy, as a party, we have had, we confess, for some years past, very little respect. It has advocated many salutary measures, tending to equalize the advantages of trade and remove the evils of special legislation. But if it has occasionally lopped some of the branches of the evil tree of oppression, so far from striking at its root, it has suffered itself to be made the instrument of nourishing and protecting it. It has allowed itself to be called, by its Southern flatterers, "the natural ally of slavery." It has spurned the petitions of the people in behalf of freedom under its feet, in Congress and State legislatures. Nominally the advocate of universal suffrage, it has wrested from the colored citizens of Pennsylvania that right of citizenship which they had enjoyed under a Constitution framed by Franklin and Rush. Perhaps the most shameful exhibition of its spirit was made in the late Rhode Island struggle, when the free suffrage convention, solemnly calling heaven and earth to witness its readiness to encounter all the horrors of civil war, in defence of the holy principle of equal and universal suffrage, deliberately excluded colored Rhode Islanders from the privilege of voting. In the Constitutional Conventions of Michigan and Iowa, the same party declared all men equal, and then provided an exception to this rule in the case of the colored inhabitants. Its course on the question of excluding slavery from Texas is a matter of history, known and read of all.