Alexander Agassiz (1888). “A Contribution to American Thalassography: Three Cruises of the United States Coast and Geodetic Survey Steameer "Blake", in the Gulf of Mexico, in the Caribbean Sea, and Along the Atlantic Coast of the United States, from 1877 to 1880”
Charles Kingsley (1871). “Westward Ho! Or, The Voyages and Adventures of Sir Amyas Leigh, Knight, of Bourrough, in the County of Devon, in the Reign of Her Most Glorious Majesty, Queen Elizabeth”, p.1