The board of education is authorized and empowered to supervise and direct the classification of all sixteenth section lands or lieu lands, according to the definition hereinabove set out. In making the classifications provided by Sections 29-3-31 through 29-3-39, the board of education is authorized and empowered to request the services of any public agency within this state which is equipped and qualified to assist in such classification. It is hereby made the duty of any such agency when so requested to assist the board of education in making such classification.