determine whether in truth a federal right has been denied. When a federal right has been specially set up and claimed in a state court, it is our province to inquire not merely whether it was denied in express terms but also whether it was denied in substance and effect. If this requires an examination of evidence, that examination must be made. Otherwise, review by this Court would fail of its purpose in safeguarding constitutional rights. Thus, whenever a conclusion of law of a state court as to a federal right and findings of fact are so intermingled that the latter control the former, it is incumbent upon us to analyze the facts in order that the appropriate enforcement of the federal right may be assured. Creswill v. Knights of Pythias, 225 U. S. 246, 261; Northern Pacific Ry. Co. v. North Dakota, 236 U. S. 585, 593; Ward v. Love County, 253 U. S. 17, 22; Davis v. Wechsler, 263 U. S. 22, 24; Fiske v. Kansas, 274 U. S. 380, 385, 386; Ancient Egyptian Order v. Michaux, 279 U. S. 737, 745.
Second. The evidence on the motion to quash the indictment. In 1930, the total population of Jackson County, where the indictment was found, was 36,881, of whom 2688 were negroes. The male population over twenty-one years of age numbered 8801, and of these, 666 were negroes.
The qualifications of jurors were thus prescribed by the state statute (Alabama Code, 1923, § 8603)': “ The jury commission shall place on the jury roll and in the jury box the names of all male citizens of the county who are generally reputed to be honest and intelligent men, and are esteemed in the community for their integrity, good character and sound judgment, but no person must be selected who is under twenty-one or over sixty-five years of age, or, who is an habitual drunkard, or who, being afflicted with a permanent disease or physical weakness is unfit to discharge the duties of a juror, or who cannot