Sec. 6. DEPOSIT AND USE OF FEES. The examination fees provided for in Section 3 of this Act shall be deposited with the Comptroller in a special fund to the credit of the Land Board created in Section 2 hereof. All such moneys so paid into the State Treasury are hereby specifically appropriated to said Land Board for the purpose of defraying the authorized and necessary expenses incident to the enforcement of this Act incurred by said Board in determining the identity of persons entitled to the benefits of this Act. The Comptroller shall, from time to time, upon requisition of the Commissioner of the General Land Office, draw warrants upon the State Treasury for the amounts specified in such requisition, not exceeding, however, the amount of such fund on deposit at the time of the making of any requisition therefor. Any sum remaining in such fund after all expenses have been paid shall be transferred to the Permanent School Fund. The amount of money accruing to the State of Texas as consideration for the sale of the land as provided for in Section 3 hereof shall be placed to the credit of the Permanent School Fund.