The State Board of Agriculture and Industries is hereby authorized to call into consultation the heads of departments, professors or scientists of Auburn University and officers or specialists of the Alabama Agricultural Extension Service whenever it may be deemed advisable to secure technical, scientific or practical information relating to any of the subjects of this title. It shall be the duty of such heads of departments, professors or scientists of Auburn University and of the officers or specialists of the Alabama Agricultural Extension Service, when so requested by the State Board of Agriculture and Industries, to attend any meetings of the board and to furnish such information, facts and data in their possession as may be requested by the said board. The actual traveling expenses of such persons in attending such meeting may be paid from the Agricultural Fund.