actually intended by the speaker to incite those addressed to commit it, and adapted thus to incite them, is such a counselling or advising to the crime as the law contemplates, and the person so inciting others is liable to be indicted as a principal. "In the case of the _Commonwealth_ v. _Bowen_ (13 Mass. R. 359), which was an indictment for counselling another to commit suicide, tried in 1816, Chief Justice Parker instructing the jury, and speaking for the Supreme Court of Massachusetts, said:-- "'The government is not bound to prove that Jewett would not have hung himself, had Bowen's counsel never reached his ear. The very act of advising to the commission of a crime is of itself unlawful. The presumption of law is that advice has the influence and effect intended by the adviser, unless it is shown to have been otherwise; as that the counsel was received with scoff, or was manifestly rejected and ridiculed at the time it was given. It was said in the argument that Jewett's abandoned and depraved character furnishes ground to believe that he would have committed the act without such advice from Bowen. Without doubt he was a hardened and depraved wretch; but it is in man's nature to revolt at self-destruction. When a person is predetermined upon the commission of this crime, the seasonable admonitions of a discreet and respected friend would probably tend to overthrow his determination. On the other hand, the counsel of an unprincipled wretch, stating the heroism and courage the self-murderer displays, might induce, encourage, and fix the intention, and ultimately procure the perpetration of the dreadful deed; and if other men would be influenced by such advice, the presumption is that Jewett was so influenced. He might have been influenced by many powerful motives to destroy himself. Still the inducements might have been insufficient to procure the actual commission of the act, and one word of additional advice might have turned the scale.' "When applied--as this ruling seems to have been here applied--to a case in which the advice was nearly connected, in point of time, with the criminal act, it is, in my opinion, correct. If the advice was intended by the giver to stir or incite to a crime--if it was of such a nature as to be adapted to have this effect, and the persons incited immediately afterwards committed that crime--it is a just presumption that they were influenced by the advice or incitement to commit it. The circumstances, or direct proof, may or may not be sufficient to control this presumption; and whether they are so, can duly be determined in each case, upon all its evidence.