Voyages of the Northmen to America : including extracts from Icelandic sages relating to western voyages by Northmen in the tenth and eleventh centuries / in an English translation by North Ludlow Beamish ; with a synopsis of the historical evidence and the opinion of Professor Rafn as to the places visited by the Scandinavians on the coast of America ; edited with an introduction by the Rev. Edmund F. Slafter.