SEC. 13. The bond herein provided for must be executed before the distiller can withdraw from distillery bonded warehouse, free of tax, alcohol to be de-natured, and if he desires to continue in the business of de-naturing alcohol, said bond must be renewed on the first day of May of each year or before any alcohol is withdrawn from bond for de-naturing purposes. It must be executed in duplicate in accordance with instructions printed thereon. One copy is to be retained by the collector and one copy is to be transmitted to the Commissioner of Internal Revenue." CONDITIONS UNDER WHICH ALCOHOL IS WITHDRAWN. "SEC. 15. Not less than three hundred (300) wine gallons of alcohol can be withdrawn at one time for de-naturing purposes. When a distiller, who is a producer of alcohol of not less than 180 degrees proof and who has given the de-naturing warehouse bond as aforesaid desires to remove alcohol from the distillery bonded warehouse for the purpose of de-naturing, he will himself, or by his duly authorized agent, file with the collector of internal revenue of the district in which the distillery is located, notice to that effect." Upon the receipt of this notice (the form for which is given in the Regulations) the collector for the district will order a gauger to inspect the alcohol so withdrawn, and to gauge the same, and to make report; and directions are given to the official "storekeeper" to permit the transferral of the spirits to the de-naturing warehouse. SPIRITS TRANSFERRED TO BE MARKED. "Upon receipt of the permit by the storekeeper the packages of distilled spirits described in notice of intention to withdraw may be withdrawn from distillery bonded warehouse without the payment of the tax, and may be transferred to the de-naturing bonded warehouse on the distillery premises; but before the removal of said spirits from the distillery bonded warehouse, the gauger, in addition to marking, cutting, and branding the marks usually required on withdrawal of spirits from warehouse, will legibly and durably mark on the head of each package, in letters and figures not less than one-half an inch in length, the number of _proof_ gallons then ascertained, the date of the collector's permit, the object for which the spirits were withdrawn, and his name, title, and district. Such additional marks may be as follows: Withdrawn under permit issued Jan'y. 10, 1907 For De-naturing Purposes Proof gallons, 84 William Williams, U. S. Gauger, 5th Dist. Ky." SPIRITS TRANSFERRED TO DE-NATURING BONDED WAREHOUSE. "SEC. 20. When the packages of spirits are marked and branded in the manner above indicated they shall at once, in the presence and under the supervision of the storekeeper, be transferred to the de-naturing bonded warehouse."