[If] he left sons who were of age as well as minors —- [if] those of age improved the properties, they improved [them] for the common estate. If they said, “See what our father left us; we shall labor and eat [for ourselves],” they have improved [them] for themselves.  Similarly, a wife who improved the properties improved them for the common estate. If she said, “See what my husband left me; I shall labor and eat [for myself],” she has improved [them] for herself.