Aratrum, Plough (now used at Mantua).

1. Buris. 2. Temo. 3. Dentale.

4. Culter. 5. Vomer. 6 6. Aures.

ARBĬTER. [[Judex].]

ARCA (κιβωτός). (1) A chest, in which the Romans were accustomed to place their money; and the phrase ex arca solvere had the meaning of paying in ready money. The term arcae was usually applied to the chests in which the rich kept their money, and was opposed to the smaller loculi, sacculus, and crumena.—(2) The coffin in which persons were buried, or the bier on which the corpse was placed previously to burial.—(3) A strong cell made of oak, in which criminals and slaves were confined.

ARCĔRA, a covered carriage or litter, spread with cloths, which was used in ancient times in Rome, to carry the aged and infirm. It is said to have obtained the name of arcera on account of its resemblance to an arca, or chest.

Arcera. (Ginzrot, Wagen, Tav. 19, fig. 2.)

ARCHEION (ἀρχεῖον) properly means any public place belonging to the magistrates, but is more particularly applied to the archive office, where the decrees of the people and other state documents were preserved. This office is sometimes merely called τὸ δημοσίον. At Athens the archives were kept in the temple of the mother of the gods (μήτρῳον), and the charge of it was entrusted to the president (ἐπιστάτης) of the senate of the Five-hundred.