HOW DE-NATURED ALCOHOL SHALL BE GAUGED. "SEC. 42. The gauging of de-natured alcohol shall, where it is practicable, be by weight. The officer shall ascertain the tare by actually weighing each package when empty. Then, after each package has been filled in his presence, he shall ascertain the gross weight, and, by applying the tare, the net weight. He shall then ascertain the proof in the usual manner, and by applying the proof to the wine gallons content the proof gallons shall be ascertained. The regulations relating to the gauging of rectified spirits, so far as they apply to apparent proof and apparent proof gallons, shall apply to de-natured spirits. Where it is for any reason not practicable to gauge de-natured alcohol by weight, using the tables that apply in the case of the gauging of distilled spirits, the gauging shall be by rod." Sections 43 to 45 provide for the returns to be made by the Government officials, and the proper marking of the packages containing de-natured alcohol; and Sections 46 to 48 lay down the form of the Government stamps and their use. Section 49 places the mixing tank absolutely in the control of the warehouse officer, and requires if he leaves the warehouse he must close and lock the same. Section 50 deals with records to be kept by warehouse officer. DE-NATURED ALCOHOL TO BE REMOVED FROM WAREHOUSE. "SEC. 51. Not later than the close of business on the day following that upon which the work of drawing off and gauging the de-natured spirits is completed, the distiller must remove said de-natured alcohol from the de-naturing bonded warehouse. He may either remove the alcohol to a building off the distillery premises, where he can dispose of it as the demands of the trade require, or he may dispose of it in stamped packages direct to the trade from the de-naturing bonded warehouse." Sections 52 and 53 relate to records to be kept by the distiller showing de-natured alcohol received and disposed of by him, and the parties to whom the same was sold or delivered. Sections 54 to 57 cover reports and records to be made by officers and collector. Part II of the Regulations relates to dealers in de-natured alcohol, and manufacturers using the same. "SEC. 58. Alcohol de-natured by use of methyl alcohol and benzine as provided in section 26 of these regulations is to be classed as _completely de-natured alcohol_. Alcohol de-natured in any other manner will be classed as _specially de-natured alcohol_." DE-NATURED ALCOHOL NOT TO BE STORED ON CERTAIN PREMISES, AND NOT TO BE USED FOR CERTAIN PURPOSES.