In the following year Tindal L.C.J. in the case Reg. v. Vaughan [2] , directed a jury concerning a defence of insanity made to an indictment for larceny. His direction was as follows: - "It is not mere eccentricity or singularity of manner that will suffice to establish the plea of insanity; it must be shewn that the prisoner had no competent use of his understanding so as to know that he was doing a wrong thing in the particular act in question." Clearly enough their Lordships both considered the contrast to be between right and wrong in the general sense and not lawfulness and unlawfulness. From this time there are many reports of charges to juries consistently making the test depend upon the distinction between right and wrong. For example, in Reg. v. Stokes [1] , Rolfe B. directed a jury that "Every man is held responsible for his acts by the law of this country if he can discern right from wrong." In Reg. v. Davies [2] , a case in which the offence charged was arson Crompton J. said to a jury: - "Do you find that the prisoner set the place on fire? If you do, are you of opinion that he knew right from wrong? It is not sufficient that you should think he did it from being in a reckless depressed state of mind. You must find that, from mental disease, he did not know right from wrong." In Reg. v. Richards [3] , Crowder J. gave a direction thus "It is for you to say whether, at the time of the act done, the prisoner knew the nature of the act done, or that it was a wrong act." In Reg. v. Haynes [4] , in a case where irresistible impulse was relied upon in support of the defence of insanity to a charge of murder, Bramwell B. ended his charge - "We must therefore return to the simple question you have to determine - did the prisoner know the nature of the act he was doing; and did he know that he was doing what was wrong?" In Reg. v. Law [5] , Erle C.J. asked the jury whether they were of the opinion that the prisoner was in a state to know that she was doing what was wrong. He did, however, include in his summing up the statement "It is for you to say whether, upon such evidence, you consider she was in such a state as to know the nature of her actions, and to be aware that she was committing a crime". The charge was murder and the use of the word "crime", is natural enough and does not mean that capacity to know the legal quality of the act was the test. There are, however, on the other side one or two statements that wrong means contrary to law. In particular, in the case of Reg. v. Dove, Bramwell B. is reported in "The Times" of July 21st of that year as having said, after explaining that the prisoner must prove that he did not know that he was doing what was wrong, "Of course, that means doing an act prohibited by law; because a man might imagine that killing was a right thing to do, and it might be contrary to law". The true view, however, appears to us to have been that which we have stated. It was admirably set out in Pope's Treatise on the Law and Practice of Lunacy, 2nd ed. (1890), p. 385. That author wrote: - "Accordingly, in a reasonable system of law, that person only will be criminally responsible who, at the moment of committing a criminal act, is capable of remembering that the act is wrong, contrary to duty, and such as in any well-ordered society would subject the offender to punishment. It is by a reference, such as this, to principles of general morality rather than to the enactments of positive law that the courts of this country have been content to test criminal responsibility in individual cases. That ignorance of the positive law cannot be pleaded as an excuse for crime, is a maxim necessary to the safety of society, and sufficiently near the truth for practical purpose. It would, therefore, be misleading to raise the issue of capacity or incapacity to know that a particular act is contrary to the law of the land. But a judge may, without fear of misleading, direct the jury that the accused is not responsible for his criminal acts if he has not the mental capacity to know that the particular act is wrong, or, in other words, if he cannot distinguish between right and wrong in regard to the particular act; and this is accordingly the form commonly adopted in practice."