The taking possession of a thing which belongs to no one (res
), with the intention of appropriating it: the property in it is thereby ipso facto
vested in him who takes possession (De Off.
21). Among the things of which one can become owner in this fashion are wild animals, birds,
bees, and fishes (
Inst. ii. 1, 12
property on Roman soil (ib.
17), stones and pebbles found on the
18), islands which rise in the sea (ib.
22), treasure-trove (ib.
39), and res
, property abandoned by its former owner (ib.