The Governor-General may authorize the amounts hereinbefore specified to be set aside by a municipality or province to be increased or decreased, and a contribution to be made from Insular funds if an appropriation has been made for that purpose, which in  no case shall exceed one-half the amount contributed by the municipalities and the province. [2468-16.] SECTION  827 . How Health Fund to be Used. —  The health fund thus created shall be deposited with the provincial treasurer and, except as provided in the next succeeding paragraph hereof, shall be used only for the purpose of paying the salaries and travelin g expenses of presidents, subordinate officers and employees of the sanitary divisions of the province, and the travel expenses necessarily incurred by the same, from their place of residence, upon proceeding to their station to assume the office, upon app ointment, and for the purchase of medicines, medical supplies, and disinfectants to be distributed among the municipalities concerned for sanitary and other medical purposes, and other incidental expenses for carrying out the purposes of sections eight hun dred and sixteen to eight hundred and thirty, inclusive, hereof. [2232-1.] The salaries of district health officers and their assistants, and expenses in connection with their duties, may be paid from this fund, with the prior approval of the Secretary of the Interior. [2468-16.] If at the close of the fiscal year there shall remain any balance in the health fund provincial boards are hereby authorized to accumulate such balances from year to year for the purpose of establishing hospitals, benevolent institutions in the province, o r of carrying out other permanent sanitary improvements. CHIEDS SECTION  828 . Municipality Not Contributing to Health Fund. — Municipalities included in a sanitary division whose general funds do not exceed three thousand pesos a year shall, upon application to the Director of Health, be relieved from liability to contr ibute to the health fund of the sanitary division, and in such case shall not be entitled to participate in the benefits of such fund. [2156-6.] SECTION  829 . Salaries of Officials and Employees Pertaining to Sanitary Division. — The provincial boards shall in accordance with Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 253