This is the first in a two-volume work that provides an edited publication of Matthew Flinderss fair journals from the circumnavigation of Australia in 1801-1803 in HMS Investigator, and of the Memoir he wrote to accompany his journals and charts. The journals comprise a daily log with full nautical information and remarks on the coastal landscape, the achievements of previous navigators in Australian waters, encounters with Aborigines and Macassan trepangers, naval routines, scientific findings, and Flinderss surveying and charting. They also include instructions for the voyage and some additional correspondence. The Memoir explains Flinders methodology in compiling his journals and charts and the purpose and content of his surveys. This edition has a substantial introduction.