The defendant is charged in the information with the crime of rape, alleged to have been committed on the fifteenth day of August, 1901, by having sexual intercourse with Irene Farias, a female under sixteen years of age. He was found guilty and sentenced to imprisonment at San Quentin for thirty years. This was beyond the expectancy of defendant’s life for that which was not a crime at common law and only a misdemeanor in many jurisdictions. (People v. Derbert, 138 Cal. 467 .)

1. It is claimed that there is no evidence that defendant ever had sexual intercourse with Irene Farias, and we think the claim is well founded. Under our statute it is rape to have sexual intercourse with a female under the age of sixteen not the wife of the perpetrator. Any sexual penetration, however slight, is sufficient to complete the crime. (Pen. Code, sees. 261, 263.) It is essential, in order to find a defendant guilty of rape, that sexual penetration be proven, or that facts be proven from which it may be inferred. It is said in Underhill on Criminal Evidence (see. 416): “Proof of penetration beyond a reasonable doubt is always absolutely essential. Evidence that the woman voluntarily remained with the defendant in a room all night is not sufficient. ’ ’

In speaking of the statutory crime which is in many jurisdictions termed the carnal abuse of female children, Mr. Bishop, in his late work on Statutory Crimes (3d ed., sec. 488), says: “The carnal knowledge required in this offense is the same as in rape proper, explained in another connection. There must be res in re, but to no particular depth, and the hymen need not be broken.”

The supreme court of Wisconsin in a case where the defendant was convicted of rape upon a female child twelve years of age reversed the case, and among other things held that the evidence was not sufficient. (Hardtke v. State, 67 Wis. 552 .) The court said: “There was not a particle of evidence in the case of penetration.” In State v. Dalton, 106 Mo. 463 , the defendant was charged with rape upon a. female child under the age of twelve years, and was convicted. The evidence showed that defendant, a married man, during the absence of his wife and family, in the night-time left his room and went to the room when the girl slept and got in bed with her. He then toyed with her, held her in his arms, pulled up her clothes, and for some time continued his lewd solicitations. The court reversed the case, and said: “We think it clear that the evidence entirely fails to sustain the charge of rape. All the authorities agree that penetration is necessary to constitute the offense. There has been some discussion by the courts and differences of opinion as to the extent of the penetration necessary to complete the crime, but none deny its necessity to some extent, or that it must be proved beyond a reasonable doubt. (2 Bishop on Criminal Law, sec. 1132; 1 Wharton on Criminal Law, sec. 554, and authorities cited.) ” And the court correctly charged the jury that sexual penetration is necessary to constitute the crime of rape. It is therefore clear that to sustain the charge the prosecution must have proven sexual intercourse, which includes and means sexual penetration. It is the usual and ordinary practice, so far as we are informed, to prove the facts fully. Not legal conclusions or terms, but the acts that were done by defendant in detail. Such acts, when proven, must show sexual penetration, although it may be slight. In some cases the facts and circumstances are such that penetration may be inferred therefrom. But we know of no case where it has not been held necessary to prove penetration. Here there is an entire absence of such proof. The prosecuting witness did not tell any one about it until months afterwards. She was then sent for by the district attorney; but how he knew anything which justified him in sending for her does not appear. She testified: “I told him it did not occur. Then after that he told me if I didn’t tell him I might get myself in trouble. He said he might put me in jail. . . . Before I left his office he told me not to tell my mother what occurred, asked me to promise him I would not. ... I did not tell my mother. ... I told her in the first place that it was not true. ’ ’ No reason appears why the matter should have been kept a secret from the mother. It was not shown that any examination had been made of the prosecuting witness by a physician, or any one else, so as to ascertain whether or not she was a virgin at the time of the trial. Not a fact or circumstance was proven from which penetration could be legally inferred. It was not even proven that defendant and the prosecuting witness ever had “sexual” intercourse. The district attorney under defendant’s objection was permitted to ask leading questions of the prosecuting witness, but by such questions did not succeed in proving “sexual” intercourse. He asked the following question: “Q. Did the defendant have intercourse with you during the month of August in the tent?” The witness answered, “Yes, sir.”

The witness, in answer to other questions, testified: “That took place on this side of the stove. There was a cot there. There is where it took place.” This is all the evidence in the record as to the act claimed to constitute the crime of rape, except the evidence of the defendant, who testified that he never at any time had sexual intercourse with the prosecuting witness. Intercourse means “a commingling; intimate connections or dealings between persons or nations, as in common affairs and civilities, in correspondence or trade; communication; commerce, especially interchange of thought and feeling; association; communion.” (Webster’s Dictionary.) There was testimony to the effect that the prosecuting witness was often in the defendant’s tent, and that she some times sat on his lap and read to him. This may have been the intercourse referred to in answer to the leading question of the district attorney. The fact that the district attorney appears to have asked a prior question as to “sexual intercourse” does not assist the evidence. Such question was not answered. The only question that was answered did not in its terms relate to sexual intercourse. Nor did the testimony of the defendant that he never at any time had sexual intercourse with the prosecutrix aid the evidence of the prosecution. The proof that a thing did not occur certainly does not tend to show that it did occur. In a criminal prosecution nothing is presumed against a defendant, and all presumptions are in favor of innocence. It cannot be said that because the charge was “sexual intercourse” that we must presume it was “sexual intercourse” that the district attorney was asking about. There would be as much logic in saying that when a defendant is charged with stealing a white horse that it would be presumed that the horse spoken of was a white horse in the absence of proof. This court said in People v. Terrill, 127 Cal. 100 : “The presumptions are all in favor of innocence, and if the facts stated may or may not constitute a crime, the presumption is that no crime is charged.” In this case if the facts proven constitute a crime, it would have been sufficient to state them in the information. If the information had charged defendant with having “intercourse” with Irene Parias, no lawyer would for a moment say that it charged a crime. The words have no greater meaning in evidence than they would have in an information.

2. As the crime charged is only made such by the statute it was material for the prosecution to prove that Irene Parias was under sixteen years of age at the time. Por this purpose the prosecuting witness testified that she was over fifteen and under sixteen years of age. The trial took place in April, 1902, and the witness testified that she was sixteen the preceding March.

In cross-examination the defendant’s counsel asked her the following questions:—

The court sustained the objection of the district attorney to each of the above questions, except the two where the answers are stated. The defendant’s attorney then asked the witness:—•

The court sustained objections to each of the above questions. The defendant saved an exception to the ruling and to the ruling on each question as herein stated. It is evident that the court erred in the rulings. If Irene Farias was seventeen years of age in March, 1902, it should have been shown. It was of the greatest importance to defendant that he should have been permitted to cross-examine the prosecutrix, who had testified to her own age. If she had told various other parties that she was seventeen, the defendant had the right to bring out such facts, and she could make such explanation as she desired, provided she had any explanations to make. If, prior to the arrest of the defendant, and before any legal question was involved as to her age, Irene Farias told various parties that she was seventeen, and then on the stand swore that she was only sixteen, defendant was entitled to fully and thoroughly cross-examine her as to such facts. Particularly is this so when the witness admitted that she testified before the justice of the peace that she was born in 1885, and that she told a great many people that she was seventeen. This did not cure the error. The defendant was entitled to know the circumstances under which she made such statements, to whom she made them, and why she made them. He was entitled to bring out such statements so that the jury could know the facts and decide where the truth lay. The light of investigation should have been permitted to fall upon the witness, her statements, and her conduct. If she was testifying to the truth, such investigation would not have injured the cause of the prosecution. If she was testifying to a falsehood, the defendant should have been allowed in every reasonable way to show it. It was said by this court in People v. Westlake, 124 Cal. 452 : “The power of cross-examination is one of the most efficacious tests which is known to the law for the discovery of truth. To deprive the defendant of this right in a proper case, and in regard to material matter, and when the cross-examination is confined within the general scope of the direct examination, is error for which a judgment of conviction should be reversed. It is always proper to cross-examine a witness fully as to all facts and circumstances connected with the matter stated in his direct examination.”

• 3. The defendant asked and the court refused to give the following instruction: “You are instructed that you cannot find the defendant guilty in this case upon proof alone that defendant had intercourse with the complaining witness.” This instruction should have been given.

If there was no evidence of “sexual” intercourse, or that the prosecuting witness was under sixteen years at the time charged, the jury should not have found defendant guilty.

Other errors are urged by appellant, but as the case must be reversed for the reasons herein given, it is not necessary to discuss them.

We advise that the judgment and order be reversed.

Harrison, 0., concurred.

For the reasons given in the foregoing opinion the judgment and order are reversed.

McFarland, J., Angellotti, J., Van Dyke, J., Lorigan, J.