Ex Cassio libri
Ex libro III
Javolenus, On Cassius, Book IV. In appraising the value of an estate, the purchase-money obtained for its sale must be included, as well as the addition of whatever else it was worth, if this was done on account of business; but where it is disposed of in compliance with the terms of a trust, nothing more will be included than what the party acquired in good faith.
The Same, On Cassius, Book III. When land which is not built upon is devised, and, after the will was executed, a building is erected thereon, both the ground and the building must be delivered by the heir.
Javolenus, On Cassius, Book III. When a freedman, who has two patrons, passes one of them over in his will, and appoints a stranger heir to half of his estate, the patron who is appointed heir can claim the share to which he is entitled without deduction; and out of the other share which was left over and above what was due to him, and out of the remaining half bequeathed to the stranger, an amount shall be taken pro rata to make up the share to which the other patron is entitled by law.