Specification

a term used in the civil law, by which is meant person’s making a new species or subject from materials belonging to another. When the new species can be again reduced to the matter of which it was made, the law considers former mass as still existing, therefore, the new species as accessory to the former subject; but where the thing made cannot be so reduced, as in the case of wine, which cannot be again turned into grapes, there is no place for the fietio juris; and, there, the workmanship draws after it the property of materials. § 25, Inst. de Rer. Div. See Accession; Confuston.