Chart of the N.W. coast of America and the N.E. coast of Asia, explored in the years 1778 and 1779 / prepared by Lieut. Heny. Roberts, under the immediate inspection of Capt. Cook ; engraved by W. Palmer, No. 128, Chancery Lane.Delarochette, L. (Louis), 1731-1802, cartographer.Below title: Advertisement, the interesting discoveries made by British and American ships since the first publication of this chart in 1784, together with the hydrographical materials lately procured from St. Petersburg and other places , have enabled Mr. De la Rochette to lay down the numerous improvements which appear in the present edition, Charing Cross, January 1st, 1794, W. Faden.Includes notes.Relief shown pictorially. Depths shown by soundings.With watermark dated 1801.cartographic