Mr. Jordaine's duodecimal arithmetick being the most concise and exact method extant. In three books. Containing Notation, Addition, Subtraction, Multiplication, Division, Reduction, Extraction of the Square and Cube Roots, Rule of Proportion, Direct and Reverse. Duodecimally Perform'd, And very Practically applied to the Measuring of all Sorts of Superficies and Solids, as Board, Glass, &c. Timber, Stone, &c. And also to the Gauging of all Sorts of Brewers Tons, Casks, &c. and that with more Ease and Expedition, than by Vulgar or Decimal Arithmetick. Very Useful for all sorts of Men, as well Gentlemen as others, but especially for Merchants, Writing-Masters, and all Measuring Artificers. And all the rules made Plain and Easie for the meanest Capacity