1868 The complete Practical Distiller

THE COMPLETE PRACTICAL DISTILLER.

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because the predominant taste of the aniseeds will entirely cover what they had before acquired from other ingre- dients. Such are the points to be taken notice of on this subject.

RULES FOE DETERMINING THE RELATIVE VALUE AND STRENGTH OF SPIRITS. The following requisites are necessary to be obtained before this can be done in a satisfactory manner: — The specific gravities of a certain number of mixtures of alco- hol and water must be taken so near each other as that the intermediate specific gravities may perceptibly diflfer from those deduced from the supposition of a mere mix- ture of the fluids ; the expansions or variations of specific gravity in these mixtures must be determined at different temperatures; some easy method must be contrived for determining the presence and quantity of saccharine or oleaginous matter which the spirits may hold in solution, and the effect of such solution on the specific gravity and, lastly, the specific gravity of the fluid must be ascer- tained by a proper floating instrument, with a graduated stem or set of weights, or, which may be more convenient, with both. They will be well suited for answering the purpose of the operator.