Stereometry, or, The art of gauging made easie, by the help of a sliding-rule [electronic resource] : Which shews the area's of circles in gallons, and the square and cube-root of any number under 100000, by inspection: and is also very useful in arithmetick and geometry, particularly in the measuring of superficies and solids. With an appendix of conick sections: shewing the nature, properties and contents of several solids, frequently mentioned in books of gauging. The sixth edition. To which are added several new tables, with short and plain rules for gauging of malt. By Tho. Everard, Esq