Regularum libri
Ex libro IV
Ulpianus, Rules, Book IV. Where a slave is ordered to be free by the terms of a will, he will obtain his freedom as soon as any portion of the estate whatsoever is accepted; provided it is accepted by one belonging to the degree in which the slave is ordered to be free, and that he has been unconditionally manumitted.
Ulpianus, Rules, Book IV. Where a slave owned in common is possessed by one of the joint-owners in the name of all, he is understood to be possessed by all. 1Ad Dig. 41,2,42,1Windscheid: Lehrbuch des Pandektenrechts, 7. Aufl. 1891, Bd. I, § 155, Noten 6, 9.Where an agent purchases property by the direction of his principal, he immediately acquires possession of it for him. This is not true if he purchases it on his own responsibility, unless his principal ratifies the sale.