Opinion by
Plaintiff claimed compensation for the death of her husband, who was accidentally killed in the course of his employment with defendant; the referee disallowed the claim on the ground that, at the time of the accident, “the employer and employee were then engaged in interstate commerce,” and, therefore, the Workmen’s Compensation Act of Pennsylvania could not apply, citing New York Central R. R. Co. v. Winfield, 244 U. S. 147, 152, and Erie R. R. Co. v. Winfield, 244 U. S. 170, 172.
An appeal was taken to the Workmen’s Compensation Board, attacking the underlying findings of fact made by the referee on the ground that they were not supported by the evidence in the case, and the ultimate or controlling finding on the ground that “absolutely no evidence” had been introduced to sustain it. The board affirmed the findings and conclusion of the referee, and dismissed the appeal; whereupon the case was removed to the Common Pleas (of Philadelphia County), which tribunal affirmed the order of the board. Plaintiff then appealed to this court.
*338Appellant states two questions involved: (1) “Are the findings of fact by the Workmen’s Compensation Board ......, upon appeal from the referee, final in cases where there is no testimony whatever to support said findings of fact?” (2) “Was there any competent, legal evidence before the referee to sustain his finding of fact that appellant’s husband was injured while engaged in an act of interstate commerce?”
Section 409 of the Act of June 2, 1915, P. L. 736, 751, provides that “the board’s findings of fact shall in all cases be final.” This provision comprehends all instances where the board either adopts the findings of the referee or makes its own findings after a hearing de novo; and, as recently ruled by us in Poluskiewicz v. P. & R. C. & I. Co., 257 Pa. 305, 307, if the board errs in its findings, the “courts can grant no relief.”
Here there are no subordinate, underlying findings as to the character of evidence upon which the ultimate or controlling findings rest, and, since the case before us is on certiorari, the testimony taken by the referee is no part of the record; hence we are not in a position to determine the propositions stated by appellant.
In McCauley v. Imperial Woolen Company, 261 Pa. 312, we make a rather minute examination of the Act of 1915, supra, and fully discuss the relative rights, duties and jurisdiction, of the compensation board and courts thereunder; it would serve no useful purpose to go over the same ground again.
The assignments of error are overruled, and the judgment of the court below is affirmed.