See Libaruus (Orat. Parent. c. 71. p. 296), Ammianus (xxii. 9), and the Theodosian Code (1. xii. tit. i. leg. 50-55) with Godefroy's Commentary (tom iv p. 390-402). Yet the whole subject of the Curia, notwithstanding very ample materials, still remains the most obscure in the legal history of the empire.