A voyage of discovery to the North Pacific Ocean and round the world : in which the coast of north-west America has been carefully examined and accurately surveyed : undertaken by His Majesty's command principally with a view to ascertain the existence of any navigable communication between the North Pacific and North Atlantic oceans : and performed in the years 1790, 1791, 1792, 1793, 1794 and 1795, in the Discovery sloop of war, and armed tender Chatham / - Vancouver, George (Printed for John Stockdale, 1801)