Venuleius, Stipulations, Book II. Julianus states that the creditor of a son under paternal control cannot receive a surety after the death of the latter, because no civil or natural obligation with which the surety is connected survives; but it is evident that a surety can be properly received from the father on account of the action on the peculium which may be brought against him.

Venuleius, Stipulations, Book II. If, of two persons who are about to bind themselves by a promise, one answers to-day, and the other on the following day, they will not be jointly liable, and he who has answered on the next day is not even regarded as liable at all—as the stipulator, or the promisor turned aside for the transaction of other business—even though he made his reply after the said transaction had been concluded. 1If I stipulate for ten aurei with Titius and a ward without the authority of his guardian, or with a slave, and I have accepted them as two jointly liable promisors, Julianus says that Titius alone will be bound; although if a slave should promise, the same rule must be observed in an action for his peculium, as if he had been free.