In nothing is 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 arising thereon to the judgment of the court 2 Tidd, Pr. 1173; Booth v. Com., 7 Mete. (Mass.) 285, 287. In obscura voluntate manumittentis, favendum est libertati. Where the expression of the will of one who seeks to manumit a slave is ambiguous, liberty is to be favored. Dig. 50, 17, 179. In obscuria, inspici solere quod verislmilius est, ant quod plerumque fieri solet. In obscure cases, we usually look at what is most probable, or what most commonly happens. Dig. 50, 17, 114. In obscuris, quod minimum est sequitur. In obscure or doubtful cases, we follow that which is the least. Dig. 50,17, 9; 2 Kent Comm. 557.