The Wealth of Nations by Part 5 Chapter 2 Page 110

pound, the former may be at four shillings in the pound too. The tax at Hamburg and the still more moderate tax of Unterwald and Zurich are meant, in the same manner, to be taxes, not upon the capital, but upon the interest or net revenue of stock.

That of Holland was meant to be a tax upon the capital.

Taxes upon as Profit of particular Employments

In some countries extraordinary taxes are imposed upon the profits of stock, sometimes when employed in particular branches of trade, and sometimes when employed in agriculture. Of the former kind are in England the tax upon hawkers and pedlars, that upon hackney coaches and chairs, and that which the keepers of ale-houses pay for a licence to retail ale and spirituous liquors. During the late war, another