Opinion by

This is an appeal by the relator from an order made after hearing upon habeas corpus remanding the relator to the house of correction, to which she had been committed by a magistrate for three months, but reducing the term *618of imprisonment imposed by the magistrate to thirty days. By writing filed it is agreed by the district attorney and counsel for the relator, that certain records and proceedings shall constitute the record to be considered on this appeal and amongst these are the transcript from the magistrate’s docket, the commitment, the petition for habeas corpus, the order of the quarter sessions and a stipulation as to the facts. The evident purpose of this agreement is to enable this court to determine as to the magistrate’s jurisdiction and as to the legality of the commitment issued by him, upon consideration of the entire proceedings before him and not merely upon a view of what appears on the face of the commitment. These are substantial questions which in some form of proceeding the relator was entitled to have determined, and in view of the stipulation of counsel we feel relieved of the necessity of considering whether the procedure adopted was the most appropriate one to bring them under review.

It appears from the record and proceedings referred to in the stipulation that the relator was arrested upon a warrant charging her with assault and battery and was brought before the magistrate. His record of the proceedings is as follows: “Warrant issued on the 12th day of January, 1912, on oath of Julia Siloski, defendant, charged with assault and battery. Brought up January 12th, Julia Siloski, sworn, Lewis Levit, sworn. After hearing defendant charged with being idle, disorderly person. After hearing defendant committed to the House of Correction for 3 months.” It is fairly to be presumed from this record that the magistrate did not deem the evidence sufficient to justify him in holding the relator to bail for the quarter sessions to answer the criminal charge upon which she had been arrested, and it is quite clear that upon an information charging a person with assault and battery, a magistrate has not jurisdiction to summarily convict the accused and commit him to the house of correction for a definite term of imprisonment. Therefore the commitment has nothing to rest on but *619the new and independent charge, evidently made after the hearing on the original charge, that the relator was an idle and disorderly person. By whom this charge was made, whether it was made by written complaint or orally, what facts were alleged as constituting the offense, what information the relator had of the new charge and what opportunity was afforded her to defend against it, and what evidence, if any, was adduced in support of it, are matters upon which the record is silent. Nor does it appear, except inferentially from the fact that he committed her, that the magistrate adjudged her to be guilty of the charge. While some of the technical formalities of summary convictions as originally administered in England and this country have been dispensed with, there are certain essentials which still exist and must appear upon the record. It is still necessary that a summary conviction shall contain a finding that a specific act has been performed by the defendant and that it shall describe or define it in such a way as to individuate it, and show that it falls within an unlawful class of acts. Without this, a judgment that the law has been violated goes for naught. This is not merely a formal or technical rule of summary convictions, but a most essential and substantial one. The reason for the rule is set forth convincingly and with great clearness in Com. v. Nesbit, 34 Pa. 398, and in Com. v. Borden, 61 Pa. 272, it was said that the essentials there enumerated were reasonable and “as necessary to bound arbitrary power, and prevent oppression and injustice to the citizen of a republic, as to the subject of a crown.” The rule as stated in Com. v. Nesbit has been invariably followed in later cases, amongst which may be mentioned Reid v. Wood, 102 Pa. 312; Com. v. Davison, 11 Pa. Superior Ct. 130; Com. v. Cannon, 32 Pa. Superior Ct. 78; Shryock v. North Braddock Borough, 43 Pa. Superior Ct. 508. It is plainly applicable here. By the Act of February 21, 1767, 1 Sm. L. 268, certain classes of persons were “declared to be idle and disorderly persons” and hable to the pen-*620allies thereby imposed. In the later Acts of June 13, 1836, P. L. 539, and May 8, 1876, P. L. 154, the same classes of persons are declared to be vagrants. But in no statute relating to summary convictions that has been called to our attention are the terms “idle and disorderly persons” used in their general and most comprehensive sense so as to include every person who is idle or disorderly or both. Therefore the record of the summary conviction of such person ought to set forth the acts which constitute the offense. As already indicated, neither the record nor the commitment in the present case complies with the rule by showing the facts essential to the magistrate’s jurisdiction to summarily convict the relator. Therefore we need not go outside the record in determining the question. But if we were to do so, the same result would be reached upon a view of the facts set forth in the agreement and made part of the record; for, whatever be said of the relator’s acts, it cannot be said that they constitute an offense for which she could be summarily convicted.

The judgment is reversed and the/qlator is discharged.