perhaps, in some degree inseparable from taxes upon consumable commodities, fall as light upon the people of Great Britain as upon those of any other country of which the government is nearly as expensive. Our state is not perfect, and might be mended, but it is as good or better than that of most of our neighbours. In consequence of the notion that duties upon consumable goods were taxes upon the profits of merchants, those duties have, in some countries, been repeated upon every successive sale of the goods. If the profits of the merchant importer or merchant manufacturer were taxed, equality seemed to require that those of all the middle buyers who intervened between either of them and the consumer should likewise be taxed.

The famous alcavala of Spain seems to have been established upon this principle.