The sum of three hundred thousand dollars ($300,000) is hereby annually appropriated from the receipts heretofore or hereafter collected under the provisions of Chapter 5, Statutes of 1938, or any other act under which oil royalties are or may be collected, other than those receipts received from rents, bonuses, and royalties accruing from the use of state school land, to carry out the purposes of this article. Such amount shall annually be paid into the General Fund.