In the judgment arbitration, the sun questions preliminary subtracted to the competence of the referees are those of which in art.806 of the Italian Civil Code proc. Civ. (Foreseen the subjects unavailable or others Fix per law), per to which in the hypothesis of contemporary slope of the same case in front to the and ad authority ad a college arbitration, not work the litisyness, nè can invoc arsi the suspension necessary of to which in art.295 of the Italian Civil Code civ., since the competence of one of the judges, excluding the one of the other and having character exclusive and mandatory, va re Solta with the affirmation or the negation of the competence of the judge session, in ratio to existence, to content and to limits validity of the compromise or of the clause compromise.