v. Delta Transp. Co., 100 Mich. 16, 58 N. W. 630.—Imternal revemue. In the legislation and fiscal administration of the United States, revenue raised by the imposition of taxes and excises on domestic products or manufactures, and on domestic business and occupations, inheritance taxes, and stamp taxes; as broadly distinguished from “customs duties,” c c, duties or taxes on foreign commerce or on goods imported. See Rev.