There is only one tide in the twenty-four hours; it takes twelve hours for the tide to flow in, and twelve hours for it to flow out again; and very uninteresting is the aspect of the coast line sailing down the Gulf. Flinders anchored near Sweer's Island, which he named, and examined Bentinck, Mornington, and Bountiful Islands adjacent thereto, the whole group being called Wellesley's Islands. An inspection made here of the "Investigator" showed that there was scarcely a sound timber left in her, and the wonder was that she had kept afloat so long; however, Flinders determined to go on with his explorations. One island was called Bountiful Island from the immense number of turtles and turtles' eggs which were there procured, and when leaving on the continuation of their course, they took forty-six turtles with them averaging 300 lbs. each. * * * * * There is at the present day on Sweer's Island, a well containing pure fresh water called Flinders' well, supposed to have been sunk by him, and near to it was a tree marked by him. This tree was standing in 1866-8, but as it showed signs of decay, it was removed in 1888 by Pilot Jones, and sent to the Brisbane Museum, where it now is. This tree (which is generally known as the "Investigator" tree) has a number of dates and names carved thereon, as follows:-- 1.--1781, "Lowy," name of early Dutch exploring vessel, commanded by Captain Tasman, after whom the Island of Tasmania is named. 2.--1798, and some Chinese characters. 3.--1802, "Investigator." "Robert Devine." (Devine was the first lieutenant of Flinders' ship "Investigator.") 4.--1841, "Stokes." (Captain Stokes commanded the "Beagle," surveying ship, which visited the Gulf in 1841.) 5.--1856, "Chimmo." (Lieutenant Chimmo commanded the "Sandfly," surveying vessel.) 6.--"Norman." (Captain Norman of the "Victoria," visited the Gulf in 1861 with Landsborough's party in search of Burke and Wills. The Norman River is named after Captain Norman.)