The agricultural experiment station established in connection with the North Dakota state university of agriculture and applied science must be operated under the direction of the state board of higher education for the purpose of conducting experiments in agriculture according to the provisions of section 1 of the Act of Congress approved March 2, 1887, entitled “An act to establish agricultural experiment stations in connection with the colleges established in the several states under the provisions of an act approved July 2, 1862, and of the acts supplementary thereto”.