The trial of Knapp, for the murder of Mir. White, of Salem, has failed 10 produce a conviction, the jury not hav- ing agreed on a verdict. A second trial IS to be had immediately, as a mo- ton on the partof the prisoner to post pone 1t was overruled by the court.

 The guilt of Knapp, which he fully confessed before Crowninshield destroy cd his own life, is rendered difficult of proof; and if the prosecutors do not eventually succeed in establishing it, the probability is that the whole party concerned will escape punishment; be- cause the principal must be convicted, before theaccessories canb tried :unless there is 2 law of the state which pro- vides for this specific case. It would. indeed be lamentabe result, if such a horrd transaction should have oc- cured, and the nefarious actors in it escape the penalty of the law. But we would almost as willingly hear of the impunity of the whole, as that this Knapp, who was the original instieator of the crime, and for whose benefit it was perpetrated, should have slipped bis neck from the halter by turning States witness, and convicting by his testimony the men whom he employed to commit the murder.-G Y. Daily .Adv.