Section 9
SEC. 9. The grantee shall keep an account of the gross receipts of the business transacted by him and shall furnish the Auditor General and the National Treasurer a copy of such account not later than the thirty-first day of January of each year for the preceding year. For the purpose of auditing the accounts rendered to the Auditor General and the National Treasurer, all the books and accounts of the grantee, or duplicates thereof, shall be subject to the official inspection of the Auditor General or his authorized representatives, and the audit and approval of such accounts by said officers shall be final and conclusive evidence as to the amount of said gross receipts, except that the grantee shall have the right to appeal to the courts under the terms and conditions provided by law.