To the Friends of the African Captives.—The committee have the high satisfaction ofannouncing, that the Supreme Court ot the United States,have definitely decided that the long imprisoned captives who were taken in theAmistad, AllE FREE, on this soil, without condition or restraint. The o-pinion of the court was pronounced on Tuesday, March 9, by Judge Story, in view of this groat deliverance, in which the lives and liberties of thirty-six fellow-men are secured, as well as many fundamental principles of law, justice, and human rights established, the committee respectfully request,that public thanks be given on the occasion to Almighty God, in all the churches throughout the land. S, S. Jocelyn, Joshua Leavitt, L. Tappan.