in Farriery, mange tumours upon a horse's hinder legs, between the ham and the patern.

ARETIUM, (Cicero, Caesar); Arrhetium, (Ptolemy); Urbs Arrhetinorum, (Polybius); one of the twelve ancient towns of Tuscany, near the Arno and Clanis, situated in a pleasant valley. Now Arezzo, 42 miles east of Florence. E. Long. 13. 18. Lat. 43. 15.