The young gauger's instructor, [electronic resource] : being the most plain and easy introduction to that art. Wherein are contained, the doctrine of decimal arithmetick; the Method of Extracting the Roots of all Powers, in a New, Easy, and more Expeditious Method than hitherto published: the method of gauging all kinds of vessels, as used by the Officers of Excise: a new, easy and short way of ullaging casks by the pen: the description, Construction and Use of the sliding rule, with several necessary Amendments; as also several useful Tables and Problems, never before published. To which is added, an appendix, of the Gauging of Irregular Bodies, wherein several Errors of all former Writers on this Subject are demonstrated and corrected. By Isaac Overley, Late Officer of Excise. And likewise, a supplement, by the editors: Wherein is shewn a general Method for finding the Areas, or Solid Contents of all Kinds of curvilineal Figures.