A foreign-born minor child, if in the Philippines at the time of the naturalization· of the parent, shall automatically become a Philippine citizen, and a foreign-born minor child, who is not in the Philippines at the .time the parent is naturalized, shall be deemed a Philippine citizen only during his minority, unless he ,begins to reside permanently in the Philippines when still a· minor, in which case, he will continue to be. a Philippine citizen even after becoming of age.
A child born outside of the Philippines after the naturalization of his parent shall be considered a Philippine citizen, unless within one year after reaching the age of majority, he fails to register himself as a Philippine citizen at the American Consulate of the country where he resides, and to take the necessary oath of allegiance."