SEC. 4. Section four of the same Act is amended to read as follows:
"SEC. 4. The Public Welfare Board shall, under the immediate control, direction, and executive supervision of the 'Secretary of the Interior, have the following powers and duties:
"(a) To receive and appropriate such sums or properties as may be provided by law or raised through public contribution to take care of charity cases, or for other general public welfare purposes;
"(b) To maintain an office in the city of Manila for the conduct of the business of the Public Welfare Board, for the investigation of social conditions, and the dissemination of publications tending to promote the betterment thereof;
"(c) To establish and maintain, within the provisions of existing law, social centers and other agencies, with suitable personnel, for the public welfare in such places as may be determined, and to expend for the support of the same such sums as may be necessary;
"(d) To be an advisory committee to the Secretary of the Interior in all matters pertaining to public charity and welfare;
"(e) To appoint and organize committees of citizens to help it in its work and to coordinate public and private efforts for public welfare and social service, and
"(f) To submit to the Department head an annual report on all its operations and activities during the year and a statement of the funds received and expenses authorized or incurred during said period."