Sec. 3. EXECUTION OF DEED; ATTESTATION. The deed of conveyance of the land exchanged and of the seven and one-half (7-1/2) acres conveyed to the governing board of the Children's Medical Center of Dallas by the Board of Regents of The University of Texas for and on behalf of the State of Texas shall be executed by the Chairman of the Board of Regents of The University of Texas and attested by its Secretary pursuant to a resolution directing such conveyance.