In noth-lng ls there error. The name of the common plea or joinder in error, denying the existence of error in the record or proceedings; which is in the nature of a demurrer, and at once refers the matter of law arlslng thereon to the Judgment of the court 2 Tidd, Pr. 1173; Booth v. Com., 7 Metc. (Mass.) 285, 287