The first and most common one is made up as follows: Ethyl Alcohol 100 gallons. Methyl " 10 " Benzine 1/2 " Where such a formula as this is required in an aqueous solution the benzine is of course thrown out, giving the solution a milky appearance. In this case the other general formula may be used. Ethyl Alcohol 100 gallons. Methyl " 2 " Pyridine Bases 1/2 " In addition to these two general formulas for de-natured alcohol a number of special formulas have been authorized to be used in the manufacture of certain classes of goods. In order to buy these specially de-natured alcohols it is necessary, of course, to obtain a permit first from your Collector of Internal Revenue, a simple permit to use de-natured alcohol will not suffice. Some of the special formulas are as follows: For use in the manufacture of sulphonmethane. Ethyl Alcohol 100 gallons. Pyridin Bases 1 gallon. Coal Tar Benzol 1 " For use in the manufacture of transparent soap. Ethyl Alcohol 100 gallons. Methyl " 5 " Castor Oil 1 " 36∞ Be. Caustic Soda Solution 1/2 " For the manufacture of shellac varnishes. Ethyl Alcohol 100 parts by volume Methyl " 5 " " " For the manufacture of smoking and chewing tobacco. Ethyl Alcohol 100 gallons. A mixture made as follows: 1 " Aqueous Solution containing 40% Nicotine 12 gallons Acid Yellow Dye 0.4 lb. Tetrazo Brilliant Blue 12 B Conct. 0.4 lb. Water to make 100 gallons. For the manufacture of photo-engravings. Ethyl Alcohol 100 gallons. Sulphuric Ether 65 lbs. Cadmium Iodide 3 " Ammonium " 3 " For the manufacture of fulminate of mercury. Ethyl Alcohol 100 gallons. Methyl " 3 " Pyridine Bases 1/2 " The next formula may be used for the following purposes: In the manufacture of photographic dry plates. In the manufacture of embalming fluid. In the manufacture of heliotropin. In the manufacture of resin of podophyllum and similar products. In the manufacture of lacquers from soluble cotton. In the manufacture of thermometer and barometer tubes. Ethyl Alcohol 100 gallons. Methyl " 5 " For use in the manufacture of photographic collodian.