The general gauger [electronic resource] : or, the principles and practice of gauging beer, wine, and malt. Containing I. Decimal Arithmetick, the Extraction of the Square and Cube-Roots, and the Use of them, in the Way of Gauging. II. The Necessary Problems in Geometry relating to Gauging and Measuring. III. The Use of the Sliding-Rule in Measuring Timber, and other Surfaces and Solids. IV. The Theory and Practice of Gauging in all the Varieties, perform'd by Pen and Sliding-Rule. Each Proposicion being Wrought in Beer, Wine, and Malt. V. The Construction of the Table of Segments, and all the Varieties of Ullaging of Casks. VI. A Table of Areas in Malt-Bushels, &c. The Whole laid down more Methodically than any Performance of this Nature yet extant. By Mr. John Dougharty, Teacher of the Mathematicks at Worcester.