(b) the subject of prescription must be a person capable of possessing, and he must be honestly convinced that he has a right to what he possesses;

(c) the claim of the subject to the object must rest on possession, on apparent title to the property, and on the lapse of the legal time during which possession has been held or ownership has remained undisputed.

1876. Wills.—A will is a declaration made in legal form (i.e., with the solemnities required by law) of the disposal to be made of one’s property after one’s death. Defects in a will or legacy sometimes operate to take away the moral obligations of observing it.

(a) Thus, if the defect is one of natural law (e.g., a will made under duress), there is no moral right or obligation produced by reason of the gift.

(b) If the defect is of positive law only and makes the will rescindable (e.g., a will not subscribed, as by law required, in presence of the testator), the gift is good in conscience until adverse decision of court.

(c) If the defect is of positive law only and makes the will _ipso facto_ invalid (e.g., a legatee acts as witness to a will), the gift is good in conscience, if there is question of pious causes, since property donated to God may not be alienated by human laws. But the Church desires civil formalities to be observed in the making of wills (Canon 1513).

(d) If the defect is positive and _ipso facto_ invalidating, and there is question of profane causes, the will is not good in conscience, even before declaration of court.

1877. Contracts.—A contract may be deined as a mutual agreement concerning the transfer of a right.

1. A contract is a mutual agreement, i.e., there must be consent of at least two parties to the same object. An offer made but not accepted is not a contract, for only one party consents.

2. The contractants transfer a right which produces in most instances under justice a corresponding obligation of doing or omitting something. Promises, pledges, pacts, etc., while they impose obligations based on truthfulness, loyalty, etc., are not contracts. See 1888 (a).