SECTION 1. With the concurrence and approval of the Secretary of War first had, rule twenty of Act Numbered Ninety is hereby amended by prefixing thereto the words "Except as hereinafter provided," so that said rule shall read as follows:
"RULE 20. Except as hereinafter provided, accounts of disbursement shall be rendered monthly and transmitted to the Auditor within ten days after the expiration of the month to which they pertain, by the officers and agents authorized to make disbursements, in which such officers or agents shall charge themselves with all moneys advanced to them, respectively, by the Treasurer, and take credit for the disbursements made by them, supported by proper vouchers. An abstract of the disbursements, accompanied by the vouchers therefor, consecutively numbered, shall he transmitted with each account."