If the Board of Trustees of a free public library, any part of whose books has been paid for with State funds, fails to provide for the safety and public usefulness of such books or fails to pay the annual appropriation in accordance with section 633 of this title, the State Librarian shall notify in writing the trustees of such library as to the requirements of the State Librarian in respect to such books. If such trustees neglect to comply with such requirements for 60 days after the serving of such notice, such books shall thereafter be under the full control of the State Librarian. (Added 1969, No. 226 (Adj. Sess.), § 4, eff. March 31, 1970.)