Farther observations on the discovery of America, by Prince Madog ab Owen Gwynedd, about the year, 1170 : containing the account given by General Bowles, the Creek or Cherokee Indian, lately in London, and by several others, of a Welsh tribe or tribes of Indians, now living in the western parts of North America / - Williams, John, (Printed by J. Brown, at the Printing-Office ... and sold by White and Sons [etc.],, 1792)