All moneys levied or appropriated by the county court or the county board of education under this article shall be expended upon orders of the county court or Board of Education as other such county funds are expended, and a duplicate of all salary vouchers and expense accounts shall be filed with the cooperative extension service of West Virginia University in such form as will comply with the provisions of the act of Congress approved May 8, 1914, known as the "Smith-Lever Act," or any act of Congress amendatory thereof or supplementary thereto, but no part of any money so appropriated shall be used to compensate any representative of West Virginia University or any other person, except the persons employed under this article.