and in the same line as the Indication, will be the PER CENTAGE of strength, the numbers above the zig-zag being Over Proof, and those below it Under Proof. PROBLEM. To calculate the Quantity of Proof Spirit in Spirits of any other Strength. CASE 1. FOR OVER PROOF SPIRITS. Multiply the content or actual quantity by the percentage Over Proof, and divide the product by 100; then add the quotient to the actual content gaged, and the sum will be the quantity of Proof Spirit. EXAMPLE. If a puncheon of rum contain by gage 126 gallons of strength 18.5 per cent Over Proof, what is the quantity of Proof Spirit in the Cask? 126 gallons per gage 18.5 strength over proof 630 1008 126 100) 2331.0 product Quotient 23.31 quantity over proof Add 126-00 gallons per gage Sum 149.31 GALLONS PROOF, Answer. CASE 2. FOR UNDER PROOF SPIRITS. Multiply the gage by the per-centage Under Proof, and divide the quotient by 100; then from the content by gage deduct the quotient, and the remainder will be the quantity of Proof Spirit sought. EXAMPLE. If the quantity of brandy in a Cask be by gage 60 gallons of strength 12 per cent Under Proof, what is the actual quantity of Proof Spirit in the Cask? As ample directions for the use of the Hydrometer are always given as an accompaniment to it, and as the instructions to the different Officers visiting Distillers and Rectifiers, explain at large every thing connected with their duty not mentioned in this book, we shall now conclude our work with Tables for moneying the charges on all Exciseable Commodities, referring the reader to JONAS'S EXCISE LAWS for abstracts of the several Acts of Parliament relating immediately to this subject. |