[MARCIANUS libro tertio institutionum. ] §41.1.8.prpro regione cuiusque praedii.
[MARCIANUS, Institutes, book 3] in proportion to the extent of each estate.
§41.1.8.1Sed et si in confinio lapis nascatur et sunt pro indiuiso communia praedia, tunc erit lapis pro indiuiso communis, si terra exemptus sit.
But also, if a stone is formed on the boundary, and the estates are held in common undivided, then the stone, if it is excavated from the earth, will be common undivided.