The original astronomical observations made in the course of a voyage to the northern Pacific Ocean, for the discovery of a north east or north west passage: Wherein The North West Coast of America and North East Coast of Asia were Explored. In His Majesty's Ships the Resolution and Discovery, in the years MDCCLXXVI , MDCCLXXVII, MDCCLXXVIII, MDCCLXXIX, and MDCCLXXX. By Captain James Cooke, F. R. S. Commander of the Resolution, and Lieutenant James King; and Mr. William Bayly, Late Assistant at the Royal Observatory. Published by order of the Commissioners of Longitude, at the Expence of whom the Observations were Made [electronic resource].