A voyage round the world in the years MDCCXL, I, II, III, IV : by George Anson, Esq; now Lord Anson, commander in chief of a squadron of His Majesty's ships, sent upon an expedition to the South-Seas / compiled from his papers and materials by Richard WalWalter, Richard, 1716?-1785MDCCXLIX [1749]Some plates drawn and engraved by R.W. Seale; some plates engraved variously by R.W. Seale, J. Wood, J.S. Müller, and J. Mason.The extent of the contribution of Richard Walter to the work vis- a-vis that of Benjamin Robins, who apparently at least revised and edited the compilation and rewriting, is in dispute.text