Page:History of merchant shipping and ancient commerce (Volume 2).djvu/259

 by the Inspector General of the Customs, London, and presented to Parliament.

Prior to the Registry Act of the 24th of George III. vessels were measured in a very loose manner, and in order to evade the payment of lighthouse dues, and various port charges collected on tonnage, they were usually registered far below their real burthen; indeed the difference between the measurements under the old Act of William and that of George III., being on the aggregate no less than one third, accounts in some measure for the apparently very small tonnage of the vessels given in the returns to which we have just referred. But the return, as a whole, furnishes pretty accurately the position of the merchant navy and of the oversea commerce of the United States when they separated from the mother-country. That important event in the history of the world produced a complete revolution in the relative positions of the great maritime nations; a merchant navy having