The commissioner shall cooperate with other states where a state warehouse system is in operation and promote the formation of an interstate board so that there may be uniformity in handling and marketing the crop in all the states; and the commissioner is authorized to spend such sums as may be necessary for this purpose.
(Ga. L. 1918, p. 246, § 21; Ga. L. 1920, p. 282, § 1; Code 1933, § 5-320.)