38 The usufructuary of a flock, as Julian held, ought to replace any of the animals which die from the young of the rest, and, if his usufruct be of land, to replace dead vines or trees; for it is his duty to cultivate according to law and use them like a careful head of a family.
"The Institutes of Justinian"
Caesar Flavius Justinian
3 Usufruct determines by the death of the usufructuary, by his undergoing either of the greater kinds of loss of status, by its improper exercise, and by its nonexercise during the time fixed by law; all of which points are settled by our constitution.
"The Institutes of Justinian"
Caesar Flavius Justinian
1 A use is a less right than a usufruct; for if a man has a bare use of an estate, he is deemed entitled to use the vegetables, fruit, flowers, hay, straw, and wood upon it only so far as his daily needs require: he may remain on the land only so long as he does not inconvenience its owner, or impede those who are engaged in its cultivation; but he cannot let or sell or give away his right to a third person, whereas a usufructuary may.
"The Institutes of Justinian"
Caesar Flavius Justinian