A voyage round the world, in the years M, DCC, XL, I, II, III, IV, [electronic resource] : 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 Walter, M.A. Chaplain of the ship the Centurion in that expedition