[IDEM libro septimo decimo quaestionum. ] §28.5.78.prAsse toto non distributo ita scriptum est: 'quem heredem codicillis fecero, heres esto': Titium codicillis heredem instituit.
[THE SAME, Questions, book 17.] When the entire *as* (inheritance) has not been distributed, it is written as follows: "Whoever I shall have made heir in a codicil, let him be heir"; and he appointed Titius as heir in a codicil.
eius quidem institutio ualet ideo, quod, licet codicillis dari hereditas non possit, tamen haec ex testamento data uidetur: sed hoc tantum ex hereditate habebit, quantum ex asse residuum mansit.
His appointment is indeed valid for the reason that, although an inheritance cannot be given by a codicil, nevertheless this is deemed to have been given by the testament; but he will have only so much of the inheritance as remained as a residue from the *as*.