A party, plaintiff or de- fendant, who sues out a writ or other pro- cess, or appears to conduct his case in court himself, instead of through a solicitor or counsel, is said to act and appear in person. IN PERSONAM, IN REM. In the Ro- man law, from which they are taken, the ex- pressions "in rem” and “in personam” were always opposed to one another, an act or pro- ceeding in personam being one done or di- IN PENALIBUS CAUSIS, ETC. rected against or with reference to a specific person, while an act or proceeding in rem was one done or directed with reference to no specific person, and consequently against or with reference to all whom it might con- cern, or "all the world." The phrases were especially applied to actions; an actio in per- sonam being the remedy where a claim against a specific person arose out of an ob- ligation, whether ex contractu or ex male- ficio, while an actio in rem was one brought for the assertion of a right of property, ease- ment, status, etc., against one who denied or infringed it. See Inst. 4, 6, 1; Gaius, 4, 1, 1-10; 5 Sav. Syst. 13, et seq.; Dig. 2, 14, 7, 8; Id. 4, 2, 9, 1. From this use of the terms, they have come to be applied to signify the antithesis of "available against a particular person," and "available against the world at large." Thus, jura in personam are rights primarily avail- able against specific persons; jura in rem, rights only available against the world at large. So a judgment or decree is said to be in rem when it binds third persons. Such is the sen- tence of a court of admiralty on a question of prize, or a decree of nullity or dissolution of marriage, or a decree of a court in a foreign country as to the status of a person domiciled there. Lastly, the terms are sometimes used to signify that a judicial proceeding operates on a thing or a person. Thus, it is said of the court of chancery that it acts in perso- nam, and not in rem, meaning that its de- crees operate by compelling defendants to do what they are ordered to do, and not by pro- ducing the effect directly. Sweet. In personam actio est, qua cum eo agimus qui obligatus est nobis ad faci- endum aliquid vel dandum. The action in personam is that by which we sue him who is under obligation to us to do something or give something. Dig. 44, 7, 25; Bract. 1016.