as the father in the declaration (Section 140), and such person has the right within two weeks from the day of receipt of this information to appeal to the court to set aside the statement of the mother on ground of incorrectness. If the appeal is not made within the term specified, the respective person shall be consider&d as the father of the child.
142. Suits relating to the establishment of paternity are tried in the ordinary course, but the parties are bound to give true testimony, otherwise they will be held responsible for perjury.
143. Should it be established that the person designated in Section 141 has had such intercourse with the child's mother as to become, according to the natural course of events, the father of the child, the court shall deem him to be the father and at the same time compel him to share in the expenses connected with the gestation, delivery, and maintenance of the child.
144. If the court establishes that the person mentioned in article 141 had intercourse with the child's mother at the time of conception and that at the same time the mother had intercourse with other persons, the court shall summon all the latter as defendants and impose upon them the obligation to share in the expenses as provided in Section 143.
Chapter II
Personal Rights and Duties of Children and Parents
145. Children born of a registered marriage shall bear the matrimonial surname of their par-
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