The Practical Gager: Or, The Young Gager's Assistant. Containing Those Things which are Actually Practised, and which are Absolutely Necessary to be Known and Understood by Every Person that is Employed as a Gager Or Officer in the Revenue of Excise. To which are Added, All the Necessary Tables for Gaging and Fixing the Utensils of Victuallers, Common Brewers, and Distillers: Also for Moneying the Several Sorts of Goods, Or for Finding the Amounts of the Charges. Very Useful for Supervisors, Officers, and Collectors Clerks. The Sixth Edition. With an Appendix; Containing Several Additions, Viz. The Method of Gaging by Equidistant Ordinates; Inching and Tabulating of Close Casks; and Specimens of Vouchers and Abstracts for the Several Duties. Dedicated (by Permission) to the Honourable Commissioners of Excise. By William Symons, Collector of Excise..