As at present by statute provided, the Supreme Court has the following appellate jurisdiction with reference to the Circuit Courts.

14 7 Wall. 506; 19 L. ed. 264.

Appeals or writs of error may be taken from the circuit courts direct to the Supreme Court in the following cases:15

"In any case in which the jurisdiction of the court is in issue; in such cases the question of jurisdiction alone shall be certified to the Supreme Court from the court below for decision.

From final sentences and decrees in prize cases.

In cases of conviction of a capital crime.16

In any case that involves the construction or application of the Constitution of the United States.

In any case in which the constitutionality of any law of the United States, or the validity or construction of any treaty made under its authority, is drawn in question.

In any case in which the Constitution or law of a State is claimed to be in contravention of the Constitution of the United States."

In addition to the foregoing enumerated in the act of March 3, 1S91, appeals lie in equity suits brought by the United States, and in cases arising under statutes regulating interstate commerce.