upon private enterprise was removed; and the slave trade was thrown open to all Englishmen; for, says the statute: “the slave trade is very advantageous to Great Britain.” But every resource of legislation, and even of war, was employed during the eighteenth century to secure the monopoly of the trade to British subjects, and to enlarge the market for their commodity in all the colonies. To this end, the royal government of the plantations, which afterwards became the United States, was perseveringly