The Wealth of Nations by Part 5 Chapter 2 Page 225

8d. It probably fell somewhat short of its usual amount, all the different taxes upon cyder having, that year, produced less than ordinary. The tax upon mum, though much heavier, is still less productive, on account of the smaller consumption of that liquor. But to balance whatever may be the ordinary amount of those two taxes, there is comprehended under what is called the country excise, first, the old excise of six shillings and eightpence upon the hogshead of cyder; secondly, a like tax of six shillings and eightpence upon the hogshead of verjuice; thirdly, another of eight shillings and ninepence upon the hogshead of vinegar; and, lastly, a fourth tax of elevenpence upon the gallon of mead or metheglin: the produce of those different taxes will probably much more than counterbalance that of the duties imposed by what is called the annual malt tax upon cyder and mum.