from their place of residence to Manila and  vice versa , and shall receive during the trip and their stay in M anila for attendance at said special classes, as compensation of all expenses, an amount at least equal to that which they received as municipal or Insular teachers on leaving their municipalities, providing the sum shall not exceed forty pesos per month. [1857-4.] SECTION  1849 . Chief Officials of Bureau of Agriculture . — The Bureau of Agriculture shall have one chief and two assistant chiefs, to be known respectively as the Director of Agriculture and the Assistant Directors of Agriculture. [2319-1 (Bur. Agriculture); Comp., 1066.] SECTION  1850 . Functions of Bureau of Agriculture . — It shall be the function of said Bureau to collect and disseminate useful information pertaining to agriculture in the Philippine Islands, to encourage the use of improved agricultural methods; and, in ge neral, to promote the development of the agricultural resources of the Archipelago, as follows: CHAPTER  42 Bureau of Agriculture Organization of Bureau ARTICLE  I ( a ) By the introduction of new domesticated animals, and the improvement of the breeds of domesticated animals now found in the Islands; ITaESD ( b ) By the control and eradication of diseases of live stock; ( c ) By the investigation of soil and climatic conditions, and the methods of producing and handling agricultural products; IcHEaA ( d ) By the introduction, production, and distribution of improved seeds and plants; ( e ) By the control and eradication of diseases, insects, and other pests injurious to cultivated plants; EHaDIC (f) By the operation of a system of demonstration and agricultural 549 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011