Bureau of Agriculture. Bureau of Forestry. Bureau of Lands. Matters pertaining to colonies and plantations on public lands. Bureau of Science. Weather Bureau. Matters concerning hunting, fisheries, sponges, and other sea products. Department of Commerce and Communications: Bureau of Public Works. Bureau of Posts. Bureau of Supply. Bureau of Labor. Bureau of Coast and Geodetic Survey. Bureau of Commerce and Industry. The Executive Bureau and the Bureau of Non-Christian Tribes, both of which are under the Department of the Interior, exercise supervision over the provincial and municipal governments. The Executive Bureau has charge of the so-called regular provinces, and the Bureau of Non-Christian Tribes of those inhabited by the backward inhabitants of the Philippines including the Moros in Mindanao and the Igorotes of the mountain regions of Luzon. The functions of these two bureaus are practically identical, the difference lying only in the degree of civilization of the inhabitants over whom they have supervision. THE LEGISLATIVE DEPARTMENT.--The legislative branch of the Philippine government is vested in the Philippine legislature. It is made up of two separate coördinate bodies, the Senate and the House of Representatives. All the senators and representatives are elected by direct popular suffrage with the exception of the representatives and senators from the Mountain Province, the Province of Nueva Vizcaya, and the provinces in Mindanao and Sulu who are appointed by the Governor-General with no restriction as to residence or length of office. The elective representatives hold their office for terms of three years and the senators for terms of six years. Laws dealing with certain special subjects such as the tariff and the mining laws require the approval of the President of the United States. The Senate has twenty-four members consisting of two senators from each of the twelve senatorial districts. The lower house has ninety members, determined by the population of each province. Appropriation bills originate by custom in the House of Representatives. THE JUDICIARY.--An independent judiciary system completes the governmental structure. The administration of justice is entrusted to the Supreme Court, the Courts of First Instance, the Municipal Court of the City of Manila, and the courts of justices of the peace in each municipality.