ACCESSIO (Lat.). An increase or ad dition; that which lies next to a thing, and is supplementary and necessary to the principal thing ; that which arises or is produced from the principal thing. Calvinus, Lex.
A manner of acquiring the property in a thing which becomes united with that which a person already possesses.
The doctrine of property arising from accessions is grounded on the rights of occupancy. It is said to be of six kinds in the Roman law.
First. That which assigns to the owner of a thing its products, as the fruit of trees, the young of animals.
Second. That which makes a man the owner of a thing which if made of another's property, upon pay ment of the value of the material taken. See also La. Civ. Code, art. 491. A0 where wine, bread, or oil is made of another man's grapes or olives. 2 Shara wood, Blackat. Comm. 404; 10 Johns. N. Y. 288.
Third. That which gives the owner of land new land formed by gradual deposit. See ALLuviort.
Fourth. That which gives the owner of a thing the property in what is added to it by way of adorning or completing it ; as if a tailor should use the oloth of B. in repairing A.'s coat, all would be long to A.; but B. would have an action against both A. and the tailor for the cloth ao used. This doc trine holds in the common law. F. Moore, 20; Poph. 38; Brooke Abr. Propertite, 23.
Fifth. That whioh gives islands formed in a stream to the owner of the adjacent lands on either aide.
Sixth. That which gives a person the property in things added to his own so that they cannot be sepa rated without damage. Guyot, Repert. Univ.
An accessary obligation, and sometimes also the person who enters into an obligation as surety in which another is principal. C.11 vinus, Lex.