There is yet another and a newer way of altering whiskey, which was shown in the Brewers’ Exhibition at Islington, October, 1890, and described in an advertisement in a morning paper as “A Transformation Scene; no Pantomime.” This new process of maturing spirits is by subjecting them to the action of compressed air confined in a close chamber. Nothing but atmospheric air is used, which is filtered through pure water before being compressed. The air chamber shown was a cylindrical vessel, which, in practice, would be some twelve feet high or more. It is supplied with a finely perforated floor, at a convenient distance below the top, and it has, besides, one or two lower floors of metallic gauze. The cylinder is charged with the liquor to be treated, and the compressed air is then let into it. The taps having been closed on the completion of this operation, a rotary pump keeps the liquor in continuous circulation as it passes through the floors in the form of a fine shower. As soon as it reaches the gauze floor it breaks up into spray, and, in this minute state of sub-division, it is acted on by the condensed air. This air, rising through a pipe, collects at the top of the cylinder, and in that way it is prevented from interfering with the steady flow of the shower. A slight circulation of the air is at the same time promoted. On the process being completed, the liquor is run into casks, and the air which remains in the vessel is allowed to escape, the quantity of alcohol in combination with it not being worth saving. The object of this process is to bring about the oxidation of the essential oils contained in the whiskey or other spirit, and to promote their conversion into ethers. It is claimed that this transformation does take place, and that the spirit is changed from a new spirit, and has all the character, mellowness, and flavour of that matured by time. This change is said to be effected in twenty-four hours, and that the spirit has, in that period, put on a maturity of ten years. J. A. [Illustration: WOODEN CUAGH OR QUAIGH. (_Brit. Mus._)] [Illustration] RUM. Derivation of Name—Whence Procured—Its Manufacture—Its Price—Trade Rum. The etymon of the name of this spirit is somewhat dubious. Some have it that it was formerly spelt (as it now is in French) _Rhum_, and that it is derived from _rheum_, or ῥεῦμα, a flowing, on account of its manufacture from the juice of the sugar cane. Others say that, as rum has the strongest odour of any distilled spirit, it is a corruption of the word _aroma_.