""Gauging Unmasked"" is a book written by John Ballard in 1812 that provides a comprehensive guide to both vulgar and decimal arithmetic, as well as several contractions in both. The book is designed to help readers learn the necessary rules and techniques for gauging, which is the process of measuring the capacity of containers such as barrels, casks, and tanks. The book is divided into several chapters, each of which covers a different aspect of...