There seem, however, to be two cases in which it will generally be advantageous to lay some burden upon foreign for the encouragement of domestic industry.

The first is, when some particular sort of industry is necessary for the defence of the country. The defence of Great Britain, for example, depends very much upon the number of its sailors and shipping. The Act of Navigation, therefore, very properly endeavours to give the sailors and shipping of Great Britain the monopoly of the trade of their own country in some cases by absolute prohibitions and in others by heavy burdens upon the shipping of foreign countries. The following are the principal dispositions of this Act.

First, all ships, of which the owners and three-fourths of the mariners are not British subjects, are prohibited, upon pain of forfeiting ship and cargo, from trading to the British settlements and plantations, or from being employed in the coasting trade of Great Britain.

Secondly, a great variety of the most bulky articles of importation can be brought into Great Britain only, either in such ships as are above described, or in ships of the country where those goods are purchased, and of which the owners, masters, and three-fourths of the mariners are of that particular country; and when imported even in ships of this latter kind, they are subject to double aliens' duty. If imported in ships of any other country, the penalty is forfeiture of ship and goods. When this act was made, the Dutch were, what they still are, the great carriers of Europe, and by this regulation they were entirely excluded from being the carriers to Great Britain, or from importing to us the goods of any other European country.

Thirdly, a great variety of the most bulky articles of importation are prohibited from being imported, even in British ships, from any country but that in which they are produced, under pains of forfeiting ship and cargo. This regulation, too, was probably intended against the Dutch. Holland was then, as now, the great emporium for all European goods, and by this regulation British ships were hindered from loading in Holland the goods of any other European country.

Fourthly, salt fish of all kinds, whale-fins, whale-bone, oil, and blubber, not caught by and cured on board British vessels, when imported into Great Britain, are subjected to double aliens' duty. The Dutch, as they are they the principal, were then the only fishers in Europe that attempted to supply foreign nations with fish. By this regulation, a very heavy burden was laid upon their supplying Great Britain.

When the Act of Navigation was made, though England and Holland were not actually at war, the most violent animosity subsisted between the two nations. It had begun during the government of the Long Parliament, which first framed this act, and it broke out soon after in the Dutch wars during that of the Protector and of Charles the Second. It is not impossible, therefore, that some of the regulations of this famous act may have proceeded from national animosity. They are as wise, however, as if they had all been dictated by the most deliberate wisdom. National animosity at that particular time aimed at the very same object which the most deliberate wisdom would have recommended, the diminution of the naval power of Holland, the only naval power which could endanger the security of England.

The Act of Navigation is not favourable to foreign commerce, or to the growth of that opulence which can arise from it. The interest of a nation in its commercial relations to foreign nations is, like that of a merchant with regard to the different people with whom he deals, to buy as cheap and to sell as dear as possible. But it will be most likely to buy cheap, when by the most perfect freedom of trade it encourages all nations to bring to it the goods which it has occasion to purchase; and, for the same reason, it will be most likely to sell dear, when its markets are thus filled with the greatest number of buyers. The Act of Navigation, it is true, lays no burden upon foreign ships that come to export the produce of British industry. Even the ancient aliens' duty, which used to be paid upon all goods exported as well as imported, has, by several subsequent acts, been taken off from the greater part of the articles of exportation. But if foreigners, either by prohibitions or high duties, are hindered from coming to sell, they cannot always afford to come to buy; because coming without a cargo, they must lose the freight from their own country