Florence Umbriaco was convicted on two counts of an indictment charging a violation of section 1621, 18 U.S.C.A. (perjury). The trial court set aside the conviction under Count I and the Government has attempted to appeal from that judgment. Florence Umbriaco has appealed from her conviction on Count II.

We have considered the Government’s attempted appeal and conclude it should be dismissed because this Court lacks jurisdiction to entertain it. The Government urges that its appeal is authorized by section 1291, 28 U.S.C.A. We are not so persuaded. The grant to the Government of the right to appeal is exclusively contained in 18 U.S.C.A. § 3731 . United States v. Nardolillo, 1 Cir., 1958, 252 F.2d 755 . The action of the trial court was neither an order setting aside or dismissing an indictment nor an arrest of judgment 1 within the meaning of § 3731, but was an acquittal of the charge made in the indictment, as is authorized by Rule 29(a), Fed.R.Crim.P., 18 U.S.C.A. An appeal from a judgment of the trial court acquitting a defendant because of the insufficiency of the evidence has never been permitted in Federal Courts. It seemed so elementary that we are surprised to find such a right asserted in this case. The appeal of the Government is dismissed because this Court has no jurisdiction thereof.

We next consider the appeal of Florence Umbriaco, hereafter referred to as appellant. Count II of the indictment charged appellant with falsely swearing under oath that during the period from September 1954 to December 1955 she did not operate as a prostitute.

The husband of appellant was on trial for violation of 18 U.S.C.A. § 2421 , commonly known as the White Slave Traffic Act. The record discloses that prior to the trial of her husband appellant had voluntarily contacted certain F.B.I. agents and admitted certain operations as a prostitute by her. We imply from the record that the Government officials were led by appellant to believe that she would be willing to give important evidence in the White Slave prosecution, but upon being called as a witness by the Government, she proved to be an evasive and reluctant witness. The evidence in the perjury trial was of a character as would sustain a conviction in most felonies, but whether it is sufficient in a perjury trial we have found a very troublesome question. This is because of the high order of proof required in a perjury trial and the general rejection of circumstantial evidence where it is relied on to meet the requirement of direct evidence by at least one witness. See Radomsky v. United States, 9 Cir., 1950, 180 F.2d 781 .

In the instant case we have the oral admission of appellant that she falsely testified, corroborated by ample evidence, but we have found no case where this has been held sufficient. The common law rule, of course, has been relaxed to a considerable extent, about the first appearance of this being in the case of United States v. Wood, 1840, 14 Pet. 439 , 39 U.S. 439 , 10 L.Ed. 527 , and again asserted in the case of Weiler v. United States, 1942, 323 U.S. 606 , 65 S.Ct. 548 , 89 L.Ed. 495 . Written admissions or other evidence under oath, if sufficiently corroborated have been held sufficient.

In the instant case the trial court, in dismissing the conviction under Count I, recognized that an oral admission corroborated by circumstantial evidence was not sufficient to sustain a verdict of guilty, but undoubtedly considered that the evidence given by a witness Campbell supplied the necessary direct evidence as to Count II. In our consideration of the sufficiency of Campbell’s testimony to supply the deficiency in Count II, we analyze the testimony of appellant as given in the White Slave trial in con *627 nection with the testimony of Campbell in the perjury trial. In the White Slave trial appellant was asked the following questions and gave the following answers relating to her activities during the period covering by Count II:

It is quite evident that the “friend” referred to by appellant was the witness Campbell, who testified that he had several acts of sexual intercourse with appellant at different hotels during the period charged in Count II, at a price of $50 for each act. Campbell also testified that he had loaned appellant money, did so willingly, and considered her a good friend.

While the answers of appellant were somewhat evasive concerning her relations with Campbell, they do not constitute that degree of intentional and direct falsification which supports a perjury conviction. The witness was evidently under the impression that isolated acts of illicit intercourse for money did not constitute “operation as a prostitute” and made her general denial of such operations on that ground, at the same time admitting sexual acts with Campbell. The Government was not misled as to this phase of her testimony, as is made manifest by the summing-up question:

We are unable to find that witness Campbell refuted anything that appellant had directly denied. Therefore, the *628 testimony of witness Campbell being eliminated as furnishing the direct evidence of at least one witness necessary in a perjury conviction, we are left with the unsworn oral admissions of appellant that she lied under oath in the White Slave trial, with strong corroboration.

The Government has argued that the circumstantial evidence in this case was of such a character as to justify its characterization as direct evidence. We fail to see this because proof of the commission of the essential overt acts necessary for a woman to operate as a prostitute is left to inference. Cf. Radomsky v. United States, 9 Cir., 1950, 180 F.2d 781 .

The decisions we have examined disclose the following extent to which courts have relaxed the rule requiring a living witness as to falsity of the matters upon which the perjury charge is based.

Written, sworn statements admitting the fact of falsity will satisfy the “one witness” rule, United States v. Flores-Rodriguez, 2 Cir., 1956, 237 F.2d 405 , cf. Jordan v. United States, 4 Cir., 1932, 60 F.2d 4 , and it has long been held that admissions from the defendant’s own hand are sufficient, even though unsworn. United States v. Wood, 1840, 14 Pet. 430, 439-441 , 39 U.S. 430, 439-441 , 10 L. Ed. 527 . Cf. Duncan v. United States, 9 Cir., 1933, 68 F.2d 136 ; United States v. Nessanbaum, 3 Cir., 1953, 205 F.2d 93 .

Oral, sworn admissions made by a defendant in testimony at the perjury trial have been held sufficient, being equivalent to a plea of guilty. United States v. Buckner, 2 Cir., 1941, 118 F.2d 468 . A sworn oral admission not made under such circumstances has been held insufficient, in the absence of other corroborating evidence. 2 McWhorter v. United States, 5 Cir., 1952, 193 F.2d 982 . And see Commonwealth v. Russo, 1957, 388 Pa. 462 , 131 A.2d 83 ; Williams v. State, 1949, 34 Ala.App. 462 , 41 So.2d 605 ; Horn v. State, 1939, 186 Miss. 455 , 191 So. 282 ; People v. McClintic, 1916, 193 Mich. 589 , 160 N.W. 461 .

Oral, unsworn statements without further corroborating evidence have always been held insufficient. 3 Phair v. United States, 3 Cir., 1932, 60 F.2d 953 ; Clayton v. United States, 4 Cir., 1922, 284 F. 537 . See, also, State v. Wallis, 1957, 50 Wash.2d 350 , 311 P.2d 659 .

We have found no case of perjury in the Federal Courts 4 in which there was present a corroborated, oral, unsworn admission of falsity, 5 and there was no *629 other direct evidence in the case. 6

There is more than circumstantial evidence here, yet in order to sustain the conviction under Count II we would be required to go a step further than the United States Courts have heretofore gone. This we are unwilling to do. 7 The trial court in Count I refused to take this further step in ordering an acquittal under Count I, but as to Count II we think it misjudged the character of Campbell’s testimony in refusing to acquit under that Count. It is ordered that the denial of the motion for acquittal under Count II is reversed and the case remanded for such further action as the trial court may determine not inconsistent with this opinion.

Reversed.

. Rule 34, Fed.R.Crim.P.; United States v. Rosenberg, 2 Cir., 1952, 195 F.2d 583, 603 ; United States v. Zisblatt, 2 Cir., 1949, 172 F.2d 740, 742 ; Goldstein v. United States, 9 Cir., 1934, 73 F.2d 804 .

. Prior sworn and unsworn statements, together with corroborating evidence, were held sufficient in Commonwealth v. Sesco, 1939, 279 Ky. 791 , 132 S.W.2d 314 ; People v. Woodson, 1944, 309 Mich. 391 , 15 N.W.2d 679 ; State v. Woolley, 1937, 109 Vt. 53 , 192 A. 1 . A corroborated sworn affidavit of falsity was sufficient in State v. Mutch, 1934, 218 Iowa 1176 , 255 N.W. 643 .

. Oral, unsworn statements were found insufficiently contradictory to amount to an admission in United States v. Alu, 3 Cir., 1956, 236 F.2d 179 ; United States v. Neff, 3 Cir., 1954, 212 F.2d 297 ; and Hart v. United States, 9 Cir., 1942, 131 F.2d 59 , so that the Court did not have to reach the question we face.

. In People v. Kennedy, 1922, 221 Mich. 1 , 190 N.W. 749 , a conviction based on an oral confession of falsity to police officers was reversed because the corroboration was inadequate. And see cases cited infra, n. 7.

. This Court found a corroborated, oral, unsworn statement sufficient for conviction under 18 U.S.C.A. § 1001 , filing a false non-Communist affidavit, in Bry-son v. United States, 9 Cir., 1956, 238 F. 2d 657 . But this Court has long held to the rule that cases under § 1001 do not come within the perjury rule. To-dorow v. United States, 9 Cir., 1949, 173 F.2d 439 ; Fisher v. United States, 9 Cir., 1956, 231 F.2d 99 ; Fisher v. United States, 9 Cir., 1958, 254 F.2d 302 .

The Fifth Circuit, in a case involving an uncorroborated, oral, unsworn admission, intimated that if the admission had been corroborated it would have been sufficient to sustain a conviction under 18 U.S.C.A. § 1015 , making false statements in immigration proceedings. Cuesta v. United States, 5 Cir., 1956, 230 F.2d 704 . But the Ninth Circuit has not yet held the perjury rule applicable to prosecutions under § 1015. See Bridges v. United States, 9 Cir., 1952, 199 F.2d 811 . *629 841-842, reversed on other grounds, 1953, 346 U.S. 209 , 73 S.Ct. 1055 , 97 L.Ed. 1557 ; and Miranda v. United States, 9 Cir., 1952, 196 F.2d 408 .

Corroboration may be required when, as ■here, the subsequent admission is made to a government agent. Cf. Bryson v. United States, supra, 238 E.2d at page 662; Smith v. United States, 1954, 348 U.S. 147 , 75 S.Ct. 194 , 99 L.Ed. 192 ; Warszower v. United States, 1941, 312 U.S. 342 , 61 S.Ct. 603 , 85 L.Ed. 876 .

. Of course, such admissions are admissible to corroborate other direct evidence in the case in satisfaction of the “one witness” rule. Vetterli v. United States, 9 Cir., 1952, 198 F.2d 291 .

. In accord is Richardson v. State, 1933, 45 Ohio App. 46 , 186 N.E. 510 , holding both written and oral unsworn admissions are inadequate although corroborated by other evidence. Cf. Horn v. State, 1939, 186 Miss. 455 , 191 So. 282 ; Billingsley v. State, 1906, 49 Tex.Cr.Rep. 620, 95 S.W. 520 .