Opinion by
Mr. Justice Roberts,In 1964 appellant, charged with the felony-murder of one Joe Howell, pleaded not guilty and faced a trial before judge and jury which resulted in a first degree murder conviction with a life sentence. Cheeks then appealed to this Court alleging (1) that inadmissible hearsay evidence had been used against him; (2) that his confession was inadmissible under Escobedo-, (3). that the same confession, if not tainted solely by Escobedo, was at least involuntary under Davis v. North Carolina, 384 U.S. 737, 86 S. Ct. 1761 (1966); and (4) that the Commonwealth. had failed to prove that appellant’s act was the cause of death. Cheeks’ appeal was argued before this Court on January 13, 1966. On September 27,1966 this Court, in an opinion written by Mr. Justice Eagen, affirmed the conviction. Commonwealth v. Cheeks, 423 Pa. 67, 223 A. 2d 291 (1966).
*92Appellant then filed a petition for reargument in which he alleged, for the first time, that the use at trial of three confessions of appellant’s three accomplices, each implicating Cheeks, violated appellant’s Sixth Amendment right of confrontation made applicable ho the states by Pointer v. Texas, 380 U.S. 400, 85 S. Ct. 1065 (1965), and Douglas v. Alabama, 380 U.S. 415, 85 S. Ct. 1074 (1965). Although these cases were decided April 5, 1965, more than nine months before oral argument, appellant’s reargument petition urged that he should not be barred from raising the Pointer claim in a second oral argument because the actual trial of the case predated both Pointer and Douglas and furthermore because Cheeks’ initial appeal had been perfected and the briefs printed also prior to Pointer and Douglas. No reason was offered, however, for counsel’s failure to raise the Sixth Amendment claim for the first time at oral argument, or for his failure to request leave to file a supplemental brief at that time. The petition for reargument was denied by this Court, per curiam, on November 7, 1966.
Cheeks next sought federal habeas corpus relief. He was rebuffed there also. In an opinion written by Judge John Lord, Jr., the federal district court denied Cheeks’ petition, without a hearing, on the ground that he had not yet exhausted his available state remedies. See United States ex rel. Cheeks v. Prasse, 261 F. Supp. 760 (E.D. Pa. 1966). It was held that Cheeks’ Pointer claim had not been finally litigated by virtue of the denied reargument petition, the federal court believing that such a disposition was not equivalent to a decision on the merits. Having been thus invited by the federal court to seek state collateral relief, Cheeks filed a petition under the Post Conviction Hearing Act which was in turn denied without an evidentiary hearing by Judge Reed of Philadelphia County Court of Oyer and Terminer. In a brief opinion Judge *93Heed concluded (1) that the Pointer claim had been finally litigated when reargument was denied; (2) that, in any event, by failing to raise the Pointer claim at his first oral argument before the Supreme Court, Cheeks had waived the right to 'test this claim collaterally; and (3) that, even on the merits, the alleged Pointer violation could not be established. It is from this adjudication that Cheeks has taken the present appeal.
Before reaching the merits of appellant’s Pointer claim, it is first necessary to decide whether Cheeks had, in fact, lost the right to raise the claim in a Post Conviction Hearing Act proceeding because of some prior conduct by either himself or counsel. Section 4 of the Post Conviction Hearing Act, Act of January 25, 1966, P. L. (1965) 1580, §4, 19 P.S. §1180-4 (Supp. 1966 )1 establishes two grounds upon which collateral relief may be denied without reaching the merits of petitioner’s claim. Thus, Cheeks will be considered ineligible for relief if his Pointer claim has been either *94finally litigated or if the right to raise that claim has been waived.
Judges Reed and Lord have already reached contrary conclusions on the issue of whether appellant’s Pointer claim has been finally litigated, their disagreement turning on the proper significance to be accorded the denial of a petition for reargument. Since we believe that such a disposition does not meet the test set out in §4 for final litigation of a matter, we hold that Cheeks’ Pointer claim has not been finally litigated. In order to hold that an issue has been finally litigated because of action taken by- the Supreme Court, §4 requires a showing that “[>t]he Supreme Court of the Commonwealth of Pennsylvania has ruled on the merits. of the issue.” (Emphasis supplied.) We agree with Judge Lord that the per curiam denial of reargument cannot amount to a disposition “on the merits” of a claim pressed for the first time in the reargument petition itself.
Supreme Court Rule 71 states, inter alia, that the petition for reargument “must specify particularly the point supposed to have been overlooked or misapprehended by the Court.” Certainly, it cannot be said that our Court “misapprehended” the Pointer claim, since it was never in fact raised. Furthermore, we believe that a proper interpretation of the term “overlooked” in the rule would require a showing that our Court failed to consider some finding of fact or proposition of law relevant to the disposition of an issue actually raised by the parties.2 It does not mean that reargü*95ment may be granted simply because one of the parties “overlooked” a relevant issue. Thus, in the present case, since Cheeks’ petition failed to show either that the Court misapprehended or overlooked any point raised in his appeal, the petition was properly denied without ever reaching the merits of the Pointer claim therein asserted. Section 4 clearly requires a disposition on the merits before any issue can be deemed finally litigated in the Supreme Court. Therefore, appellant does not here trip over that hurdle in the Post Conviction Hearing Act.
The problems posed in the present case by §4’s waiver provision, however, are more difficult to resolve. The overall import of a §4 waiver is that a petitioner may not raise an issue in a Post Conviction Hearing Act proceeding if he has had any previous opportunity to raise the issue, but failed to do so, provided however that this failure was knowing and understanding and that there are no extraordinary circumstances attendant upon the failure to raise. Tracing the route of Cheeks’ journey through our Commonwealth’s courts, we can see two points at which the Pointer claim could have been raised, but was not. These two points are Cheeks’ initial trial, and his direct appeal to our Court. As to the first, his trial, there can be no waiver. Admittedly no Pointer objection was voiced by counsel when the Commonwealth introduced the confessions of appellant’s accomplices; but this failure to object is easily explained by the simple fact that Cheeks’ trial took place in May of 1964, almost a full year before Pointer and Douglas were decided. It would be manifestly unfair to hold appellant to a waiver when this waiver is alleged to have occurred at a time when neither the defendant nor his attorney had any way of knowing that there existed a right to be waived. The Supreme Court of the United States has already expressed this view in O’Connor v. Ohio, 385 U.S. 92, 87 *96S. Ct. 252 (1966), a case followed by this Court in Commonwealth v. Baity, 128 Pa. 306, 237 A. 2d 172 (1968).
But what of counsel’s failure to raise the Pointer claim during oral argument before this. Court? O’Con-nor cannot control here because the appeal was not heard until nine months after Pointer and Douglas became law. This, we believe, is more than enough time for counsel to have become familiar with such a significant development in constitutional law. Nevertheless, there may still exist a justifiable reason for counsel’s silence during argument on the Pointer issue. Cheeks’ attorney may have believed that any attempt to raise the Pointer issue, on appeal would have been rebuffed by our Court under the well established doctrine that matters not raised at trial cannot be raised for the first time on appeal. This would be especially true during appeals that were argued before counsel or this Court had the benefit of O’Connor, a case not decided until November, 1966, almost a year after the Cheeks’ appeal was argued. Nor, 'at the time of Cheeks’ appeal, had this Court decided Commonwealth v. Jefferson, 423 Pa. 541, 546, 226 A. 2d 765, 768 (1967), wherein it was strongly implied that the prior nonavailability of newly established rights would excuse apparent waivers. The only significant flaw in this argument, however, is the fact that appellant’s counsel did seek reargument on Pointer grounds, rather than relying solely upon a collateral proceeding to vindicate his client’s rights. Thus, without'more, we might be forced to hold that Cheeks’ Pointer claim has been waived. But, fortunately for appellant, there is more.
Even were we to assume that counsel had no legitimate reason for his failure to raise 'the Pointer issue on appeal, this course of conduct, a course unguided by any tactical considerations, should not be imputed *97to the defendant himself. Implicit in our decision in Commonwealth v. Snyder, 427 Pa. 83, 233 A. 2d 530 (1967) is the notion that counsel’s actions can never bind his client when these actions are unmotivated by any reasonable, tactical choice. Moreover, we held in Snyder that a valid §4 waiver must amount to a deliberate bypass of available state procedure. Certainly, then, when the available state procedure is ignored by counsel for no apparent reason whatsoever, this cannot be considered “deliberate” on the part of his client. Thus, if counsel’s failure to raise the Pointer claim on appeal resulted merely from his inability to keep abreast of new developments in the law, no waiver should be imputed to Cheeks. Cf. Commonwealth ex rel. Washington v. Maroney, 427 Pa. 599, 235 A. 2d 349 (1967). Left therefore with Cheeks’ personal failure to raise the Pointer claim on appeal as the sole support for a possible waiver, there can certainly be no penalty assessed against appellant. Not only does a criminal defendant himself have little or no say in his appellate strategy, but even if Cheeks had prepared his own appellate brief, the failure of a layman to appreciate the significance of Pointer within nine months of its decision would certainly constitute exceptional circumstances justifying his failure to timely raise the argument. We therefore hold that appellant’s Pointer claim is properly cognizable, on the merits, in this proceeding, and turn therefore to a resolution of it.
During the course of appellant’s trial, the Commonwealth read into the record a confession given by one Craig Smith who was not called to testify. The confession implicated Cheeks. A similar confession of William Dyson, implicating appellant, was referred to, although not actually read, by a detective whose testimony was used to rebut that of a certain defense witness. The third confession, given by Joseph Baird, was also used by the Commonwealth. But Baird was called to *98the stand, and so the use of his confession cannot support appellant’s Pointer claim. As for the confessions of Smith and Dyson (two men who were not present at trial), it is clear that their use would violate the Sixth Amendment right of a defendant to confront his accusers, provided these confessions were in fact used in lieu of the two men themselves, and were introduced as the “testimony” of two witnesses to the crime. However the Commonwealth asserts that these statements were actually introduced as the statements of the defendant, on the theory that Cheeks’ own confession incorporated the confessions of his three accomplices. We decided in appellant’s direct appeal that his confession was properly introduced. Thus, two issues must be resolved: whether that confession adopts the statements of Smith and Dyson; and if it does so adopt, whether the use of the accomplices’ confessions nevertheless runs afoul of the Sixth Amendment.
Part of appellant’s confession, read into the record, consisted of the following: “Q. You were shown the statements of Craig Stephen Smith, Joseph Baird and William Dyson, are they correct in what they said? A. Yes, sir, all except Joe Baird’s statement that I tried to give him the bloody knife with the pearl handle. That was wrong [3] Q. What do you think of Craig Stephen Smith’s statement? A. It is true.” (Record at 509.)
We agree with the court below that this clear, unequivocal language of appellant, accepting as true the confessions of his accomplices, is sufficient to permit the introduction of the challenged statements as admissions of Cheeks himself. To conclude otherwise would not only be a sharp departure from the long *99established rule of both our own cases and of respected text writers, but would also extend the Pointer rationale far beyond that expressed by the Supreme Court.
Since the Pointer and Douglas decisions it has been widely recognized that the Sixth Amendment right of confrontation shares a common raison d’etre with the common law rules of hearsay. In fact, it can be said that the Pointer rule is really one of Constitutional hearsay. Perhaps the main reason, at common law, for the exclusion of most out-of-court statements of declarants offered at trial for the 'truth of the assertions therein contained was that this procedure robbed the litigant of his opportunity to test the accuracy of those statements by cross-examining their makers. So also, did the Court in Pointer note that “a major reason underlying the constitutional confrontation rule is to give a defendant charged with crime an opportunity to cross-examine the witnesses against him.” 380 U.S. at 406-07, 85 S. Ct. at 1069. This statement, as well as the hearsay evidence rationale, share at least two common, and in the present case extremely persuasive, requirements. In order to fall within either .the Pointer, or the common law hearsay prohibition the out-of-court statement must be both one whose truth •cannot be 'adequately tested and one used in lieu of some witness. The evidence here challenged suffers from neither of these defects. Not only was the truth of both confessions expressly acknowledged by the very man against whom they were used at trial, but also, since Cheeks chose to acknowledge this truth as part of his own admissible confession it cannot b'e said that the accomplices’ statements were used in place of witnesses against the accused. These confessions were “used as part of Cheeks’ own admission of guilt, their contents having been announced to the jury simply to elucidate precisely what it was that appellant himself declared to be accurate accounts of the crime. Cheeks *100was no more denied the right to cross-examine his accusers than a man could be denied the right to cross-examine himself.
Moreover, the decision we reach today finds support in both previous state cases and eminent treatises on the law of evidence. Wigmore declares that “[i]f a party expressly states that a certain piece of testimony given by another person is correct, there can be no question that it becomes his statement by adoption, and is receivable as his admission.” Wigmore, Evidence, §1075 at p. 108 (3d ed. 1940). (Emphasis in original.) Similar language also appears in McCormick, Evidence, §246 at p. 525 (1954): “One may expressly adopt another’s statement as his own. That is an explicit admission like any other and is to be classed as an express admission.” The reasons underlying such statements, reasons in complete harmony with much of the logic in Pointer, are perhaps best stated in an able opinion by Mr. Justice Kephabt (later Chief Justice) written almost thirty years before Pointer was decided. In Commonwealth v. Oreszak, 328 Pa. 65, 195 Atl. 45 (1937), defendant acknowledged the truth of several statements made by his accomplices by signing the statements himself. This Court sustained the admission of the accomplices’ confessions as admissions of the defendant, and in so doing made some significant observations which we quote with approval: “If he [the defendant] is absent when the statement [of his accomplice] or a portion of it is made, it nevertheless becomes his statement if, knowing its contents, he voluntarily assents to it. If at the time the statement is submitted, he contradicts or denies any part of it, to that extent the joint statement, or any implication arising from the denial, is hearsay and cannot be offered against him. Its evidentiary value is limited to the statements admitted by him to be true and those he contributed. . . .
*101“This statement [the one used against defendant] and its effect as evidence were considered by this Court in Com. v. Rose, supra. [Rose was another of Oreszak’s accomplices who had been previously tried.] In that case its admission against Rose was upheld. Defendant strongly objects to the statement as hearsay, and contends that it contains questions and answers not admissible in a criminal trial. In the Rose case, we said at p. 223: ‘Appellant mistakes the purpose of the offer of this statement by the Commonwealth. It was not introduced as the testimony of his accomplices, thereby depriving him of the right of cross-examination, but it was offered as a confession by him in so far as he admitted the facts stated in his presence by the other participants in the crime ....”’ 328 Pa. at 68-69, 195 Atl. at 47-48.4
Oreszak has been cited with approval in subsequent cases. See, e.g., Commonwealth v. Bolish, 381 Pa. 500, 523, 113 A. 2d 464, 476 (1955); Commonwealth v. Turner, 358 Pa. 350, 368, 58 A. 2d 61, 70 (1948), rev’d on other grounds, 338 U.S. 62, 69 S. Ct. 1352 (1949).5 *102Moreover, even at the time Oreszah was decided, Pennsylvania law had long required that an accused be given the right to cross-examine witnesses used against him.6
'We therefore see no need to disturb the finding of the court below that appellant’s constitutional rights were not infringed when the statements of Smith, Dyson, and Baird were used at his trial. The order of the Court of Oyer and Terminer of Philadelphia County, dismissing appellant’s petition under the Post Conviction Hearing Act, is affirmed.
Mr. Justice Jones concurs in the result. Mr. Justice Cohen took no part in the consideration or decision of this case.“(a) For the purpose of this act, an issue is finally litigated if: (1) It has been raised in the trial court, the trial court has ruled on the merits of the issue, and the petitioner has knowingly and understandingly failed to appeal the trial court’s ruling; or (2) The Superior Court of the Commonwealth of Pennsylvania has ruled on the merits of the issue and the petitioner has knowingly and understandingly failed to avail himself of further appeals; or (3) The Supreme Court of the Commonwealth of Pennsylvania has ruled on the merits of the issue.
(b) For the purposes of this act, an issue is waived if: (1) The petitioner knowingly and understandingly failed to raise it and it could have been raised before the trial, at the trial, on appeal, in a habeas coitus proceeding or any other proceeding actually conducted, or in a prior proceeding actually initiated under this act; and (2) The petitioner is unable to prove the existence of extraordinary circumstances to justify his failure to raise the issue.
(c) There is a rebuttable presumption that a failure to appeal a ruling or to raise an issue is a knowing and understanding failure.
See, e.g., Pennsylvania Society for the Prevention of Cruelty to Animals v. Bravo Enterprises, Inc., 428 Pa. 350, 237 A. 2d 342 (1968). In that case reargument was granted when it appeared that the Court “overlooked” a relevant statute which, when applied, properly resolved the issue of plaintiff’s standing in the court below. Unlike the present case, in Bravo, the issue of standing was raised at the initial oral argument, albeit without reference to the crucial statute.
The part of Baird’s confession repudiated by appellant is not probative on the issue of Cheeks’ guilt. Moreover, since Baird himself testified at áppellant’s trial, the introduction of Baird’s confession could not here work any constitutional violation.
Although in the Rose ease, quoted above, the defendant actually heard the' confessions of his accomplices before they were reduced to writing and signed by defendant, whereas in Oresmh and the present case, the defendant was merely shown the completed confessions, both the Oresmh court and this Court today see no reason to distinguish Rose on that ground. So long as defendant, while fully aware of the contents oí his accomplices’ confessions, expressly acknowledges their truth, this is sufficient to allow the confessions to be used as the defendant’s own admissions.
Both Bolish and Turner, while affirming the proposition that an empress admission of the truth of another’s confession can he used against the man making such admission, also hold that the defendant’s silence in the face of an accusing statement may be used by the Commonwealth as evidence of guilt. It is therefore important to note that by citing these cases we, of course, are not breathing any new life into the doctrine of tacit admissions— a doctrine expressly rejected by this Court in Commonwealth v. *102Dravecz, 424 Pa. 582, 227 A. 2d 904 (1967). The evil inherent in a tacit admission—that a man’s Fifth Amendment right to remain silent and not to he a witness against himself is destroyed when his silence is used as evidence—is, naturally an evil hot present when the defendant voluntarily and expressly admits the truth of an accusatory statement.
See Commonwealth v. Zorambo, 205 Pa. 109, 54 Atl. 716 (1903). As early as 1865 the Supreme Court of Pennsylvania had acknowledged the right of a man to confront his accusers and cross-examine them. See Howser v. Commonwealth, 51 Pa. 332 (1866). However, the factual situation in Bowser giving rise to this broad principle of law is certainly one that we do not think could withstand a constitutional challenge today. For it was there held, inter alia, that a man could be called from the jury box to appear as a witness against the defendant.