[IDEM libro uicensimo sexto ad Quintum Mucium. ] §41.2.26.prLocus certus ex fundo et possideri et per longam possessionem capi potest et certa pars pro indiuiso, quae introducitur uel ex emptione uel ex donatione uel qualibet alia ex causa.
[THE SAME AUTHOR, in the twenty-sixth book on Quintus Mucius.] A certain place in a tract of land can both be possessed and be acquired by long possession, as can a certain undivided share, which is introduced either by purchase or by gift or by any other cause.
incerta autem pars nec tradi nec capi potest, ueluti si ita tibi tradam: 'quidquid mei iuris in eo fundo est': nam qui ignorat, nec tradere nec accipere id, quod incertum est, potest.
But an uncertain share can neither be delivered nor be acquired, as for example if I should deliver to you as follows: "whatever of my right is in that land"; for he who does not know cannot deliver or receive that which is uncertain.