"SEC. 22. The Bureau of Public Schools.—The Director of Public Schools shall exercise the same jurisdiction and powers in the city as elsewhere in the Philippines, and the city superintendent of .schools shall have all the powers and duties in respect to the schools of the city as are vested in division superintendents in respect to the schools of their divisions.

"The clerical force and assistants and laborers in the office of the city superintendent of schools shall be ap­pointed by the City Mayor in accordance with the Civil Service Law, and their salaries shall be paid by the City as well as the office expenses for supplies and materials incident to the operation of said office. The City Council may provide for additional compensation for the superintendent of city school, so that the latter may have a total salary equal to that of a city department head of the same importance and for other national school officials, teachers and employees in the division of city schools so that their salaries may be placed at par with those of all performing  similar duties and rendering the same kind and amount of work. For purposes of retirement and insurance benefits administered by the Government the combined salaries received under this Act from the national government and from the city by the officials, teachers and employees concerned shall be considered as their base pay."