a sacrifice which was performed at Rome for the purification of the city, in
the same manner as the ambarvalia was intended for the purification of the
country. The victims were carried through the whole town, and the sacrifice
was usually performed when any danger was apprehended in consequence of the
appearance of prodigies, or other circumstances. (Obseq. de
100.43; Apul. Met. iii. ab init.;
where it is described). Scaliger supposed that
the amburbium and ambarvalia were the same; but their difference is
expressly asserted by Servius (ad
Verg. Ecl. 3.77
) and Vopiscus
(amburbium celebratum, ambarvalia promissa, Aurel.
100.20; cf. Preller, Röm. Myth.
p. 372; Marquardt,
vi. p. 195). [AMBARVALIA