THE AMISTAD NEGROES.The National Intelligencer of the 11th ult., says: “The reader will perceive that yesterday the decision of the Court was rendered in the case of the United States, appellant, vs. the Amistad,c., and that the judgment of the District Court of Connecticut in that case was affirmed in every respect, except as to sending the negroes back to Africa: they are by the decision discharged as free men/*